Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
anh dang » anh dung, anh danh, anh nang
anh dong » anh huong, anh son
anh bang » anh hoang, anh quang, tinh bang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
va dung » van dung, va duong, vat dung

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 - ((anh dang) or (((anh dong) or (anh bang)))) va dung cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((anh dang) OR (((anh dong) OR (anh bang)))) va dung cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((anh dang) or (((anh dong) or (anh bang)))) va dung cong dan than ban*.