Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
quan nhung » qua nhung, cua nhung, luan chung
doi chieu » doc hieu, doi chi, ho chieu
tung quan » tuong quan, trung quan, dung quan
cong tan » cong thanh, cong ty, cong ha
cong tac » cong ty
toan tap » toan ban

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 tung quan nhung ((cong tan) or (((cong san) OR (cong tac)))) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tung quan nhung ((cong tan) OR (((cong san) OR (cong tac)))) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh tung quan nhung ((cong tan) or (((cong san) OR (cong tac)))) toan tap".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung quan nhung ((cong tan) or (((cong san) OR (cong tac)))) toan tap*.