Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, chinh truong
manh truong » manh trung, manh tuong, anh truong
chieu sach » chinh sach, chieu sang, chieu xanh
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong tang » cong thang, cong tan, cong lang
tang van » dang van, hoang van, trong 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 ((chieu sach) or (chiet tach)) - ((hanh truong) OR (manh truong)) cua nhung cong tang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chiet tach)) - ((hanh truong) OR (manh truong)) cua nhung cong tang van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (chiet tach)) - ((hanh truong) OR (manh truong)) cua nhung cong tang van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chiet tach)) - ((hanh truong) OR (manh truong)) cua nhung cong tang van ban*.