Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
chau tinh » cuu tinh, ha tinh, cua tinh
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
cong san » cong tac
san toan » van toan, dan toan, manh 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) or (chau tinh)) - thanh tung ((cua dung) or (qua dung)) cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chau tinh)) - thanh tung ((cua dung) OR (qua dung)) cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chau tinh)) - thanh tung ((cua dung) or (qua dung)) cong san toan ban*.