Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
trung cap » truong cao, trung tam
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
30 trieu » 25 trieu
van tan » van tuan, van ban, van tai
tan cao » toan cao, tao cao, tay cao

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: 30 trieu tinh - hanh ((trung cap) OR (tranh cua)) ((nhung cong) OR (hang cong)) van tan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - hanh ((trung cap) or (tranh cua)) ((nhung cong) OR (hang cong)) van tan cao~".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - hanh ((trung cap) or (tranh cua)) ((nhung cong) OR (hang cong)) van tan cao*.