Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hanh tang » hanh trang, hanh mang, hanh tung
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
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 - ((hanh tang) or (anh tang)) cua nhung cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((hanh tang) OR (anh tang)) cua nhung cong dan than cap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((hanh tang) or (anh tang)) cua nhung cong dan than cap*.