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
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - hanh tranh cua ((nhung cong) or (trong cong)) ((dan toan) or (van toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh tranh cua ((nhung cong) OR (trong cong)) ((dan toan) OR (van toan)) cao.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh tranh cua ((nhung cong) or (trong cong)) ((dan toan) or (van toan)) cao*.