Is it any user manual available in the web? I could not find any :)

I dont think you can but you can use the instructions below to operate you washing machine

Washing machines may have different technology, but ultimately have the same features and purposes. They all require the proper settings, soap, water and clothes to wash. Yet, there are some things you should know to properly use a washing machine. Follow these steps for success in doing your laundry.
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Instructions

1. Read thoroughly your washing machine owner's manual. These instructions are designed for your particular washing machine. If you don't have an owner's manual, read the button control labels on your washing machine to get an idea of what they do.
   
2. Sort your clothes. You should wash white or light-colored clothes together and dark-colored clothes together. Clothes should be further sorted according to their material. Heavy fabrics should be washed together and light fabrics should be washed together.
   
3. Add detergent to your washing machine. Follow the instructions on the detergent box. The detergent should go on the bottom of the washing machine unless your washing machine instruction manual specifies otherwise.
   
4. Use the special bleach or fabric softener dispensers for your particular washing machine, if you are adding bleach or fabric softener. Otherwise, follow the instructions on the bleach and fabric softener packaging to find out how much and when you should add them to the washing machine.
   
5. Load your clothes loosely into the washing machine. Load the laundry as high as your owner's manual specifies or to the top row of holes in the tub.
   
6. Close the lid and set the controls of your washing machine according to what you are washing. Use hot water for only white cottons. Use warm or cold water for colored fabrics. Set the other controls according to the weight and durability of your clothing.
   
7. Turn on your washing machine. Allow it to work through all of the cycles and turn itself off before you unload the washed laundry.
   

• If you're going on vacation or not going to be using your washing machine for awhile, turn off the water faucets to your machine. It will relieve pressure on hoses and valves and minimize any leakage, should it occur.
• Do not leave coins, nails, screws or anything else in the pockets of your clothes when putting them in the washing machine. They could easily cause damage or even puncture a hole in the drum.
• Do not wash items that have been spotted or soaked with combustible substances. They could ignite or explode.
• If you haven't used your washing machine for at least two weeks, and haven't used any hot water in your household, turn on your hot water faucets. Allow them to run for several minutes to release any built up hydrogen gas in your water heater.

Use a search engine to find a manual, type in the search window these things:

brand name model number user manual

Then press Enter key for the results. You will find several places in the list that have a manual for that brand and model, but sometimes it is not so easy, you are delayed to click thing that downloads to your computer, they want you to view advertising first or sign up for mailing list but usually they follow custom to allow you to download manual, usually for free.