Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
van thanh » ban thanh, van tuan
cheo cua » cho cua, chuoi cua, co cua
cua nang » chua nang, cua dang, cua hang
dan toan » van toan, dan than, manh toan

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: cheo cua nang - hanh tranh cua nhung cong ((((dan toan) OR (tinh toan))) OR (van thanh)) cau~.
• Adding a wildcard symbol may retrieve word variants: cheo cua nang - hanh tranh cua nhung cong ((((dan toan) or (tinh toan))) or (van thanh)) cau*.