Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh hung » thanh huong, thanh trung, thanh cong
thanh tung » thanh cong
trong quan » thong quan, tong quan, thong quang
doi chieu » doc hieu, doi chi, ho chieu
quan than » quan thanh, qua than, quang thanh
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: doi chieu sach - ((thanh hung) or (thanh tung)) ung dung trong quan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((thanh hung) OR (thanh tung)) ung dung trong quan than cap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((thanh hung) or (thanh tung)) ung dung trong quan than cap*.