Perhaps you should try some spelling variations:
thuong doan » phuong doan, huong dan, thuong han
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
danh trung » dang trung, dinh trung, manh trung
ban thuong » ban huong, ban tuong, han thuong
manh hung » anh huong
doan van » doan va, hoang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - ((danh trung) or (manh hung)) cua ban thuong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((danh trung) OR (manh hung)) cua ban thuong doan van ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((danh trung) or (manh hung)) cua ban thuong doan van ban*.