Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh tranh » canh tranh, hanh trinh, hanh trang
ban thanh » ban hanh, ban hang
thanh mau » hanh mau, thanh san, thanh hai
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
cong ban » cong bang, cong san, cong tan

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

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