Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tuan
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
thanh tra » thanh toan, thanh hoa
van thong » van thuong, van phong, va thong
cong van » cong vang, cong san, song van
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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 tieu xanh - ((thanh tran) OR (thanh tra)) van thong cong van ((than cap) OR (khan cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((thanh tran) or (thanh tra)) van thong cong van ((than cap) OR (khan cap))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((thanh tran) or (thanh tra)) van thong cong van ((than cap) OR (khan cap))*.