Perhaps you should try some spelling variations:
hanh tran » hanh trang, thanh tran, hanh tram
van thong » van thuong, van phong, va thong
hoang van » hang va
30 trieu » 25 trieu
tran van » luan van
song van » trong van, duong van, dang van
tai ban » tai san, tai ngan, tai benh

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

• Performing a fuzzy search may retrieve terms with similar spellings: 30 trieu tinh - hanh tran van thong ((song van) or (hoang van)) tai ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - hanh tran van thong ((song van) OR (hoang van)) tai ban.
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - hanh tran van thong ((song van) or (hoang van)) tai ban*.