Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
anh thang » danh thang, manh thang, anh thong
thang va » hang va, trang va, thong va
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 thang va nhung cong dan ((than cap) or (khan ap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - anh thang va nhung cong dan ((than cap) OR (khan ap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - anh thang va nhung cong dan ((than cap) or (khan ap))*.