Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hang khong » hang thuong, hang nong, hang cong
hang khoa » dung khoa
chu xanh » chu manh, chieu xanh, chua xang
tran van » luan van
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (ho manh)) - thanh tran van ((hang khong) OR (hang khoa)) van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (ho manh)) - thanh tran van ((hang khong) OR (hang khoa)) van toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (ho manh)) - thanh tran van ((hang khong) OR (hang khoa)) van toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (ho manh)) - thanh tran van ((hang khong) OR (hang khoa)) van toan cao*.