Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dang cong » dung cong
thu sach » tu sach, thuat sach, thuoc sach
hanh ban » thanh ban, hang ban, hanh san
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ban cua » ban quan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (thu sach)) - hanh ban cua dang cong tan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (thu sach)) - hanh ban cua dang cong tan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (thu sach)) - hanh ban cua dang cong tan ((toan cau) or (toan ban))*.