Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dong » thanh duong, thanh cong, hanh dong
doi chieu » doc hieu, doi chi, ho chieu
trong tac » trong cac, tuong tac, trong tan
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
tac toan » tap toan, tam toan, hach toan
toan ban » van 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 dong ((cua dung) or (cua dang)) trong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh dong ((cua dung) OR (cua dang)) trong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh dong ((cua dung) or (cua dang)) trong tac toan ban*.