Perhaps you should try some spelling variations:
chiet tach » chieu sach
khong cong » thong cong, khong cang, chong cong
cua khong » hua khong, cua phuong, cua thuong
dan thanh » dang thanh, danh thanh, ban thanh
thanh cac » hanh cac, thanh bac, thanh ca
cong cua » cong cu, dong cua, huong cua
cong dan » cong san, cong tan, huong dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chiet tach) or (chinh sach)) - thanh cong cua khong cong dan thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chiet tach) OR (chinh sach)) - thanh cong cua khong cong dan thanh cac.
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (chinh sach)) - thanh cong cua khong cong dan thanh cac*.