Perhaps you should try some spelling variations:
cuong thanh » cong thanh, muong thanh, luong thanh
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
tang cuong » nang luong
thanh than » thanh thanh, thanh thang, thanh toan
than cao » toan cao, thai cao, than cap
cong ha » cong hoa, cong tac, cong san
dong ha » dong hoa, dong va, dong hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu sang)) - thanh ((cong ha) OR (dong ha)) tang cuong thanh than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - thanh ((cong ha) OR (dong ha)) tang cuong thanh than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sang)) - thanh ((cong ha) OR (dong ha)) tang cuong thanh than cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sang)) - thanh ((cong ha) OR (dong ha)) tang cuong thanh than cao*.