Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hung cong » nhung cong, hung cuong, phung cong
tran van » luan van
van hung » van dung, manh hung, van duong
cong san » cong tac
toan cao » toan tap
toan ban » van ban
bi tinh » vi tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((bi tinh) or (diep tinh)) - thanh tran van hung cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((bi tinh) OR (diep tinh)) - thanh tran van hung cong san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho ((bi tinh) or (diep tinh)) - thanh tran van hung cong san ((toan cao) or (toan ban))*.