Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tan thang » toan thang, tran thang, van thang
cong lang » cong vang, cong luong, cong quang
he chieu » ho chieu, he nhieu, theo chieu
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
khan cap » khan ap, than cap, khoan cam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: he chieu sach - thanh cong tan thang ((cong san) OR (cong lang)) khan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "he chieu sach - thanh cong tan thang ((cong san) OR (cong lang)) khan cap".
• Adding a wildcard symbol may retrieve word variants: he chieu sach - thanh cong tan thang ((cong san) OR (cong lang)) khan cap*.