Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
tung vap » tung va, trung van, tuong vao
vap hang » van hang, va hang, van khang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: doi chieu sach - thanh tung vap hang ((cong dan) or (cong san)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tung vap hang ((cong dan) OR (cong san)) than cap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung vap hang ((cong dan) or (cong san)) than cap*.