Perhaps you should try some spelling variations:
trinh tinh » trinh tin, trinh dinh, trinh sinh
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
cong cong » cong dong, trong cong, dung cong
tan thanh » tran thanh, tang thanh, toan thanh
thanh lap » thanh san, phan lap, thanh hai
tinh cua » trinh cua, sinh cua, tinh chat
cong tan » cong tac, cong san, cong thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((trinh tinh) or (trinh kinh)) - nhanh tinh cua cong cong tan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((trinh tinh) OR (trinh kinh)) - nhanh tinh cua cong cong tan thanh lap*.