Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
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, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac
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 ((than cap) 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 ((than cap) OR (khan ap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - anh tang cua dung cong dan ((than cap) or (khan ap))*.