Perhaps you should try some spelling variations:
mot chieu » doi chieu, ho chieu
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (mot chieu)) sach - anh tang cua nhung ((cong dan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (mot chieu)) sach - anh tang cua nhung ((cong dan) OR (cong tan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (mot chieu)) sach - anh tang cua nhung ((cong dan) or (cong tan)) toan ban*.