Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
tran van » luan van
van bang » van ban, van nang, von bang
cong dan » cong san, cong dong, cong tac
cong tan » cong tac, cong san, cong thanh
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - thanh tran van bang ((((cong dan) or (cong tan))) or (huong dan)) thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - thanh tran van bang ((((cong dan) OR (cong tan))) OR (huong dan)) thai cao.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - thanh tran van bang ((((cong dan) or (cong tan))) or (huong dan)) thai cao*.