Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
thanh cau » thanh chau, thanh mau, nhanh cau
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
song van » hoang van, trong van, duong van
va dung » van dung, va duong, vat dung

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 trung) or (thanh tung)) va dung ((cong tan) or (song van)) thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((thanh trung) OR (thanh tung)) va dung ((cong tan) OR (song van)) thanh cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((thanh trung) or (thanh tung)) va dung ((cong tan) or (song van)) thanh cau*.