Hi!
I am looking full biography of Kenneth Thompson(less Ritchi)!
Now i can find only a shot version!
Please help!

I am often confused why someone registers and posts to a forum to ask a question that is better answered by a Google Search :

http://www.bell-labs.com/history/unix/thompsonbio.html

You don't understand me...
I look for a full biography beginning at his childhood!
In Google I already look, but where only about his work and very short...
Maybe someone read about it in other sources?

There is more than enough information on the Internet to complete your assignment to write a good biography on Ken Thompson.