Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
thanh dung » thanh duong, thanh tung, thanh hung
nhung cong » dung cong, thong cong, hang cong
cong tan » cong tac, cong san, cong thanh
tan gian » tran gian, dan gian, van gian
gian cao » gian cac, gian co, giai cao

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 sach) or (nhieu tang)) - thanh dung va nhung cong tan gian cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (nhieu tang)) - thanh dung va nhung cong tan gian cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (nhieu tang)) - thanh dung va nhung cong tan gian cao*.