Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
chinh cau » chinh chau, chinh ca, chinh can
hanh ban » thanh ban, hang ban, hanh san
ban quan » van quan
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, can cau, nhanh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) OR (chiet tach)) - hanh ban quan nhung cong dan ((chan cau) or (chinh cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chiet tach)) - hanh ban quan nhung cong dan ((chan cau) OR (chinh cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chiet tach)) - hanh ban quan nhung cong dan ((chan cau) or (chinh cau))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chiet tach)) - hanh ban quan nhung cong dan ((chan cau) or (chinh cau))*.