Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
hang cong » dang cong, hang nong, bang cong
tinh cua » trinh cua, sinh cua, tinh chat
cua hang » cua dang, cua nhung, cua cong
ban than » ban thanh, van thanh, ban hang
van than » van thanh, van thang, van tuan

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