Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
tien manh » tien thanh, tieng anh, tran manh
trinh qua » trinh quan, trinh cua, trinh quang
dung cong » dung trong
tien anh » tieng anh, dien anh, tien thanh
qua dung » quang dung, su dung, qua song
doan van » doan va, hoang van, luan van
dang van » hoang van, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tien manh) or (tien anh)) - hanh trinh qua dung cong ((doan van) or (dang van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien manh) OR (tien anh)) - hanh trinh qua dung cong ((doan van) OR (dang van)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((tien manh) or (tien anh)) - hanh trinh qua dung cong ((doan van) or (dang van)) ban*.