Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
thanh cac » hanh cac, thanh bac, thanh ca
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
khan ap » khan cap, han ap, khan dam

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 - anh tang cua dung ((cong dan) OR (cong tan)) ((thanh cac) or (khan ap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - anh tang cua dung ((cong dan) OR (cong tan)) ((thanh cac) OR (khan ap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - anh tang cua dung ((cong dan) OR (cong tan)) ((thanh cac) or (khan ap))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - anh tang cua dung ((cong dan) OR (cong tan)) ((thanh cac) or (khan ap))*.