Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh bang » anh bang, hanh mang, lanh bang
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
bang va » hang va, ban va, trang va
va lang » va nang, hoa lang
than ma » than man, than va, khan ma

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 - hanh bang va lang ((cong san) or (cong tac)) than ma~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh bang va lang ((cong san) OR (cong tac)) than ma.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh bang va lang ((cong san) or (cong tac)) than ma*.