Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong lang » cong vang, cong luong, cong quang
chi sang » chi lang, chieu sang, chi chang
cong van » cong vang, song van, cong tan
cong san » cong tac
doi chi » doi khi
van cau » van dau, van hau, van chat

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 sang - hanh tranh cua nhung ((((cong van) OR (cong san))) OR (cong lang)) van cau~.
• Adding a wildcard symbol may retrieve word variants: doi chi sang - hanh tranh cua nhung ((((cong van) or (cong san))) or (cong lang)) van cau*.