Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
manh toan » thanh toan, anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
tranh va » tranh van, trang va, trinh va
dan toan » van toan, xuan toan, dien toan
dan than » dan chan, ban than, van than

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 - canh tranh va nhung cong ((((dan toan) or (manh toan))) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - canh tranh va nhung cong ((((dan toan) OR (manh toan))) OR (dan than)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - canh tranh va nhung cong ((((dan toan) or (manh toan))) or (dan than)) cau*.