Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
cong thanh » dong thanh, cong trinh, cong tan
hoa dong » hoat dong, ha dong, hoa cong
cua dong » chua dong, cua cong, cua dang
san cau » van cau, ban cau, can cau

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 (chieu xanh)) - canh tranh ((hoa dong) or (cua dong)) cong thanh san cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu xanh)) - canh tranh ((hoa dong) OR (cua dong)) cong thanh san cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu xanh)) - canh tranh ((hoa dong) or (cua dong)) cong thanh san cau*.