Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh tra, thanh tuan
thanh toan » thanh hoa, thanh san, tinh toan
hanh tung » thanh tung, manh tung, hanh dung
dang cong » dung cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
anh dang » anh dong, anh dung, anh bang
van dang » van dong, van dung, van nang

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 chu xanh - ((hanh tung) OR (anh dang)) van dang cong ((thanh tran) OR (thanh toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - ((hanh tung) or (anh dang)) van dang cong ((thanh tran) OR (thanh toan)) cao~".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((hanh tung) or (anh dang)) van dang cong ((thanh tran) OR (thanh toan)) cao*.