Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
dan than » dan chan, van than, dang thanh
dan toan » van toan, manh toan, xuan toan
ban than » ban thanh, van thanh, ban hang

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

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