Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
anh mang » hanh mang, anh bang, anh nang
anh dang » anh dong, anh dung, anh bang
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (theo chieu)) sach - ((anh mang) or (anh dang)) cua nhung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (theo chieu)) sach - ((anh mang) OR (anh dang)) cua nhung cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (theo chieu)) sach - ((anh mang) or (anh dang)) cua nhung cong dan van ban*.