Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hien xanh » hien hanh, hien nhanh, chieu xanh
tran van » luan van
van dung » van dong, xay dung, tin dung
cong dan » cong tan, cong dong, cong tac
cong san » cong tac
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - thanh tran van dung ((((cong dan) OR (cong san))) or (huong dan)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - thanh tran van dung ((((cong dan) OR (cong san))) OR (huong dan)) than cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - thanh tran van dung ((((cong dan) OR (cong san))) or (huong dan)) than cao*".