Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
nhung cau » chung cu, nhung bai, nhu cau
cua hang » cua dang, cua nhung, cua cong
cong ban » cong bang, cong san, cong tan
hang cau » hang dau, hang ca, nang cao

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