Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
nhung don » nhung van, nhung bo
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh tranh cua ((nhung don) OR (dung cong)) ((dan toan) OR (manh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh cua ((nhung don) OR (dung cong)) ((dan toan) OR (manh toan)) cau*.