Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thien anh » thien danh, tien anh, thien chanh
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: hoc ((thien thanh) or (thien anh)) - canh tranh van nhung ((cong dan) or (cong san)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien thanh) OR (thien anh)) - canh tranh van nhung ((cong dan) OR (cong san)) than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) or (thien anh)) - canh tranh van nhung ((cong dan) or (cong san)) than cap*.