Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
thanh dong » thanh duong, thanh cong, hanh dong
hang cong » dang cong, hang nong, bang cong
dong nam » dong ha, dong tai, dong va
nam hang » nam thang, nam khang, nam dang
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chieu sach) or (chiet tach)) - thanh dong nam hang cong tac than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chieu sach) OR (chiet tach)) - thanh dong nam hang cong tac than cap.
• Adding a wildcard symbol may retrieve word variants: cho ((chieu sach) or (chiet tach)) - thanh dong nam hang cong tac than cap*.