Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
tan thang » toan thang, tran thang, van thang
cong lang » cong vang, cong luong, cong quang
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - thanh cong tan thang ((cong san) OR (cong lang)) than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh cong tan thang ((cong san) OR (cong lang)) than cap".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh cong tan thang ((cong san) OR (cong lang)) than cap*.