Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
doi chieu » doc hieu, doi chi, ho chieu
dang cong » dung cong
dung cua » dung luan, dung cho
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
tran van » luan van

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 - thanh dung cua dang cong tan ((toan ban) or (tran van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh dung cua dang cong tan ((toan ban) OR (tran van)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh dung cua dang cong tan ((toan ban) or (tran van))*.