Perhaps you should try some spelling variations:
huong cua » dung cua
doc dien » duoc dien, doi dien, don dien
cua dang » cua cong, cua ban
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
thai cac » thoai cac, tai cac, khai cac
do dien » doi dien, co dien, o dien

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc dien) OR (do dien)) sach - anh huong cua dang ((cong dan) or (cong san)) thai cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc dien) OR (do dien)) sach - anh huong cua dang ((cong dan) OR (cong san)) thai cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc dien) OR (do dien)) sach - anh huong cua dang ((cong dan) or (cong san)) thai cac".
• Adding a wildcard symbol may retrieve word variants: ((doc dien) OR (do dien)) sach - anh huong cua dang ((cong dan) or (cong san)) thai cac*.