Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh ban » thanh ban, hang ban, hanh san
cua dang » cua ban
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than ban » thanh ban, toan ban, than man

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 - hanh ban ((cua dang) or (cua cong)) cong ban than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh ban ((cua dang) OR (cua cong)) cong ban than ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ban ((cua dang) or (cua cong)) cong ban than ban*.