Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
dung cong » dung trong
dung cua » dung luan, dung cho
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau
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: ho ((chieu sach) or (diep tinh)) - thanh dung cua dung cong tan ((tran cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (diep tinh)) - thanh dung cua dung cong tan ((tran cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (diep tinh)) - thanh dung cua dung cong tan ((tran cau) or (toan ban))*.