Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
theo chieu » ho chieu, theo chu, thi chieu
tuong va » truong va, thuong va, luong va
cong van » cong vang, song van, cong tan
cong san » cong tac
va dung » van dung, va duong, vat dung
van dau » van dao, phan dau

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: ((theo chieu) OR (theo tieu)) xanh - thanh tuong va dung ((cong van) OR (cong san)) van dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo tieu)) xanh - thanh tuong va dung ((cong van) OR (cong san)) van dau~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) xanh - thanh tuong va dung ((cong van) OR (cong san)) van dau*.