Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
chua xang » chua nang, chuc nang, chu bang
hang cong » dang cong, hang nong, bang cong
tran van » luan van
van hang » van khang, van hoang, van thang
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang
ho chua » ho chung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chua xang - thanh tran van hang cong ((dan than) or (ban than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chua xang - thanh tran van hang cong ((dan than) OR (ban than)) cao.
• Adding a wildcard symbol may retrieve word variants: ho chua xang - thanh tran van hang cong ((dan than) or (ban than)) cao*.