Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
manh hung » anh huong
cua nhung » va nhung
hung cua » huong cua, chung cua, khung cua
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: hoc ((hieu manh) or (((chieu sach) or (chiet tach)))) - manh hung cua nhung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (((chieu sach) OR (chiet tach)))) - manh hung cua nhung cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (((chieu sach) or (chiet tach)))) - manh hung cua nhung cong dan van ban*.