Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
hanh tranh » canh tranh, hanh trinh, hanh trang
thong cong » trong cong, tong cong, thong thong
tranh cua » doanh cua, manh cua
va tinh » may tinh
san cau » van cau, can cau, ran cau
ban cau » bang cau, ban can, van cau
ho va » ho van, nho va, tho va

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: ho va tinh - hanh tranh cua ((nhung cong) OR (thong cong)) thanh ((san cau) OR (ban cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho va tinh - hanh tranh cua ((nhung cong) or (thong cong)) thanh ((san cau) OR (ban cau))~".
• Adding a wildcard symbol may retrieve word variants: ho va tinh - hanh tranh cua ((nhung cong) or (thong cong)) thanh ((san cau) OR (ban cau))*.