Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
cong cong » trong cong, dung cong, dang cong
ho chieu » theo chieu, hoc thieu, mot chieu
van than » van thanh, van thang, van tuan
than cap » khan cap, thanh lap, thanh cac

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 - thanh dung luan ((cong cong) or (cong dong)) van than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh dung luan ((cong cong) OR (cong dong)) van than cap*.