Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
thanh tung » thanh cong
khang cong » hang cong, thanh cong, dang cong
dai khang » dai khoang, doi khang, dai thang
tan thanh » tran thanh, tang thanh, toan thanh
thanh cao » thanh ca, thanh cac, thanh thao
tung dai » trung dai, tuong dai, tung dan
cong tan » cong tac, cong san, cong thanh

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 sach) or (chieu xanh)) - thanh tung dai khang cong tan thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu xanh)) - thanh tung dai khang cong tan thanh cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu xanh)) - thanh tung dai khang cong tan thanh cao*.