Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » hanh trinh, hanh trang, lanh tranh
dang cong » dung cong
chi xanh » chi anh, chi danh, chi hanh
doi chi » doi khi
van tan » van tuan, van ban, van tai
tan cau » toan cau, van cau, tan ca

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: doi chi xanh - ((hanh tranh) OR (canh tranh)) cua ((nhung cong) OR (dang cong)) van tan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - ((hanh tranh) OR (canh tranh)) cua ((nhung cong) or (dang cong)) van tan cau~".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - ((hanh tranh) OR (canh tranh)) cua ((nhung cong) or (dang cong)) van tan cau*.