Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh dung » thanh duong, thanh tung, thanh hung
hieu manh » chieu xanh, hieu nganh, dieu hanh
hang cong » dang cong, hang nong, bang cong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap
va hang » van hang, va nang, va lang

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