Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
canh doanh » hanh doanh, chinh doanh, doanh doanh
duong manh » duong van
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
cong manh » cong danh, cong thanh, hoang manh
toan ban » van ban

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

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