The real safe way to mount things to the thin walls using screws is to mount a one-inch thick back board first connecting to the known wall studs. Then you can mount almost any of the TV MOUNTs using regular screws etc...
Will looks like these couple of photos...
google images.
If the back boards do not line with known wall studs then you can have good success using what is called a MOLLY BOLT where the inside wall part spreads out to make a good tight fit inside the wall.
This pictorial shows how it works...
Google images...
I would experiment on a spare thin board first to see how it works...
You can paint the back board to match any decor...
Roy Ken