Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
cho nhung » cho chuong, cua nhung, thi nhung
anh dong » anh huong, anh son
dong cho » dung cho, dong co, dong hoc
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
toan cao » toan ban, toan tap

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 dong cho nhung ((cong dan) or (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - anh dong cho nhung ((cong dan) OR (cong tac)) toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - anh dong cho nhung ((cong dan) or (cong tac)) toan cao*.