I know the title says from turkish - r(?), but that was just a type mistake. It´s from

english-turkish

You know nothing.

Sen hic birsey biliyorum??? something like that?

 only learning but think it is more like

seni hiç birþey biliyorsun

that´s what i had in mind at first too, but then i tried the google translator, even though i know it is often wrong, and it was nothing like that. he he

but thanks xx

"You know nothing" mean  " Sen, hiç birþey bilmiyorsun."

thank you very much harpoon

you are welcome

a small correction about spelling:

"hiçbir þey" (not hiç birþey)