Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hanh tran » hanh trang, hanh tram, thanh trang
nang cong » nang song, dang cong, bang cong
ho chiet » ho chieu, hoc thiet, hoa thiet
ho thiet » hoc thiet, hoa thiet, so thiet
van nang » van quang, van ban, van dong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (ho thiet)) tach - ((hanh tran) OR (thanh tran)) van nang cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) or (ho thiet)) tach - ((hanh tran) OR (thanh tran)) van nang cong dan toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) or (ho thiet)) tach - ((hanh tran) OR (thanh tran)) van nang cong dan toan cau*.