Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tang » thanh thang, thanh trang, thanh tung
doi chieu » doc hieu, doi chi, ho chieu
tang tai » hang tai, dung tai, sang tao
tai dung » trai dung, thi dung, mai dung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
can cau » van cau, ban cau, ca cau

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 tang tai dung ((cong dan) or (cong tan)) can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tang tai dung ((cong dan) OR (cong tan)) can cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tang tai dung ((cong dan) or (cong tan)) can cau*.