Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh hong, thanh thang
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, cong tan
cong lang » cong vang, cong luong, cong quang
he chieu » ho chieu, he nhieu, theo chieu
cong san » cong tac
than cau » toan cau, phan cau, 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: he chieu sang - thanh cong thanh thong ((cong san) or (cong lang)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: he chieu sang - thanh cong thanh thong ((cong san) OR (cong lang)) than cau.
• Adding a wildcard symbol may retrieve word variants: he chieu sang - thanh cong thanh thong ((cong san) or (cong lang)) than cau*.