Perhaps you should try some spelling variations:
trinh dinh » trinh kinh, trinh sinh, trinh dung
doc trinh » doc tinh, doi trinh, hoc trinh
trinh cua » trinh luat, trinh quan, trinh luan
cong cong » cong dong, trong cong, dung cong
tinh cua » sinh cua, tinh chat, tranh cua
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cap » khan cap, thanh lap, thanh cac

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 dinh - nhanh ((tinh cua) or (trinh cua)) cong cong ban than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc trinh dinh - nhanh ((tinh cua) OR (trinh cua)) cong cong ban than cap*.