Perhaps you should try some spelling variations:
dung cong » dung trong
chi sach » chinh sach, chieu sach, co sach
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac
doi chi » doi khi
khan ap » khan cap, han ap, khan dam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - ((anh tang) or (anh nang)) cua dung cong dan ((than cap) or (khan ap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - ((anh tang) OR (anh nang)) cua dung cong dan ((than cap) OR (khan ap)).
• Adding a wildcard symbol may retrieve word variants: doi chi sach - ((anh tang) or (anh nang)) cua dung cong dan ((than cap) or (khan ap))*.