Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua dang » cua cong, cua ban
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
thai cac » thoai cac, tai cac, khai 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) or (ho chieu)) sach - anh tang cua dang ((cong ban) or (cong san)) thai cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - anh tang cua dang ((cong ban) OR (cong san)) thai cac.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sach - anh tang cua dang ((cong ban) or (cong san)) thai cac*.