Bulgarian Turkic tribe? What’s that? If you’re talking about the Bulgars, their presumed Turkic origin is highly debatable in light of the modern historiography.
Otherwise, even the most hardcore supporters of the Turkic-origin thesis have managed to gather only about 15 supposedly Turkic words of Bulgar origin. Words like biser (pearl), chertog (palace), bъbrek (kidney), kumir (idol), kniga (book, though that one’s supposedly Chinese in origin – kuan), beleg (scar/mark), kolchan (quiver), korem (belly), pale (puppy), toyaga (staff).