Perhaps you should try some spelling variations:
tan thuong » than thuong, toan thuong, han thuong
hieu lang » chieu sang, hieu quang, nhieu tang
cong sang » cong san, cong vang, cong bang
cong lang » cong vang, cong luong, cong quang
hoi hieu » hoi phieu, hoi tieu, moi hieu
cong tan » cong tac, cong san, cong thanh
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: hoi hieu lang - thanh cong tan thuong ((cong sang) or (cong lang)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - thanh cong tan thuong ((cong sang) OR (cong lang)) than cap.
• Adding a wildcard symbol may retrieve word variants: hoi hieu lang - thanh cong tan thuong ((cong sang) or (cong lang)) than cap*.