Were can I find the screws for the Handle. The screws were missing when it was bought.

1. Locate the linkage that connects the door handle to the door latch mechanism. You may need to detach it from the door handle.
2. Look for any other retaining clips or screws that are holding the door handle assembly in place.
3. If the door handle assembly is still not coming out, you may need to remove the interior panel to access the back side of the door handle assembly.
4. Once you have access to the back side, inspect the door handle assembly for any additional screws or clips that are holding it in place.
5. Once you have removed all screws, clips, and linkage, the door handle assembly should be able to be pulled out of the door.

If you are still unable to remove the door handle assembly, it is recommended to refer to the vehicle's service manua

Must pull handle toward the barrel till unclips

Remove door panel, then unbolt handle. Verify no screws in door panel then yank. Screws probably in armrest and by door handle, maybe under switch pod lid

I think there is a screw behind the handle.pull the handle as if you were opening the door and look back in there.

Most doors have a main screw that hold the handle that pulls the door shut screwed to the frame behind it. Look for little removable trim pieces. Check behind the inside door latch for two screws. Need to remove the power window switch panel, and connector. Check for screws on the side of door panel. The rest are push pins that should pop out when you pull the door panel out. If you have a door light, be sure to reach behind and remove connector before removing the panel all the way.

Not sure how to assist with so little information provided?

You can't remove another screw & take that
to the store

check out some of these videos and maybe one of them will show you what you're missing..... good luck!!
https://search.aol.com/aol/search?q=video%20how%20to%20remove%20rear%20door%20panel%201991%20toyota%20corona&s_it=loki-keyword

this is a common problem with VW door handles, but an easy fix!!! The door handle needs to be replaced as the fork that lifts the lock has broken off or cracked. Depending on the model it is easy to remove the door handle. spring off the Crome mld on the front and on the slam side of the door behind the rubber u will find a phillips screw. Under the crome mld is the other.
Good luck.

Door Panels - REMOVAL & INSTALLATION

The many different design interiors make it impossible to list each fastener location. The trim panels that must be removed are held in place by screws and clips. These locations vary from model to model. After removal of all the fasteners that you are aware of, if the trim panel is still firmly attached, you probably missed a hidden fastener. If this happens, gently and carefully pry the area looking for the location that doesn't flex. The location that does flex is where you'll find the fastener(s) you missed. Screws and retainers are usually hidden. Handle trim, reflectors, light lenses and other plastic pieces usually cover the main retaining screws. Take great care with the plastic trim panels. Plastic trim panels are usually very hard plastic and extremely easy to crack. The following steps can be used to guide you through the removal and installation of the trim panels, but you may need to alter these steps to your specific needs.

1. Disconnect the negative battery cable.
2. Pull the inside door handle to the open position, unfasten the screw and remove the handle escutcheon.
3. If equipped with manual locks, remove door inside locking rod knob.
4. If equipped with manual windows, insert a suitable window regulator handle removal tool behind the handle. Disengage the retainer, then remove the handle.
5. If equipped with power windows and locks, use a small flat-bladed prytool to carefully pry the switch plate up, then detach the power component electrical connectors.
6. If equipped, remove the screws inserted through door armrest and pull handle assembly into door inner panel or armrest hanger support bracket.
7. Lift the seat belt trim panel up and remove the hidden retaining screws.
8. Remove the outside side view mirror trim plate retaining screw. Lift the panel up to disengage the retaining clip, then remove the trim panel from the door.
9. On styles with courtesy lamps located in the lower area of the trim panel, disconnect the wiring harness at the lamp assembly.
10. If equipped, use a suitable tool to pry the reflector plate from the side of the door panel.Remove bottom trim cover retaining screws, then remove the lower trim cover.
11. Remove any necessary electrical connector CPA clips, then unplug the electrical connectors.
12. On styles with integral armrests, remove the screws inserted through the pull cup into the armrest hanger support.
13. Unfasten the door trim panel retaining screws. The locations of the screws will vary depending upon the year of model of vehicle. The screws are usually hidden, so be sure to look carefully to make sure you don't miss any.After all of the trim panel retaining screws are removed, slide a suitable trim panel removal tool between the door panel and door perimeter to carefully disengage all of the trim panel retaining buttons. Make sure to position the tool close to the fastener, or the trim panel may be damaged.
14. Carefully lift the trim panel away from the door, checking to be sure all of the retaining buttons and screws and electrical connectors are unfastened.
    

To install:


Before installing the door trim panel, check that all trim retainers are securely installed to the panel and are not damaged. Replace damaged retainers as required.

1. Connect electrical components where present.
2. To install the door trim panel, pull door inside handle inward; then position the trim panel to the inner panel, inserting the door handle through the panel hole.
3. Position the trim panel to the door inner panel so that the trim retainers are aligned with the attaching holes in the panel, and tap the retainers into the holes with a clean rubber mallet. Install all previously removed items.
4. Install the remaining door panel components in the reverse order of removal.
5. After installation, connect the negative battery cable, then check for proper attachment and operation of electric components, if so equipped.
   

Hope helps (remember rated and comment this).