Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
dong thanh » truong thanh
ho chieu » theo chieu, hoc thieu, doi chieu
dan dung » van dung, ap dung
cong tac » cong ty
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - thanh tung ((dan dung) or (tin dung)) ((cong tac) or (dong thanh)) tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh tung ((dan dung) OR (tin dung)) ((cong tac) OR (dong thanh)) tran cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh tung ((dan dung) or (tin dung)) ((cong tac) or (dong thanh)) tran cau*.