Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
30 trieu » 25 trieu
van toan » van tuan, van tan, van thanh
dan toan » dan than, manh toan, xuan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: 30 trieu tinh - thanh trung cua nhung cong ((van toan) or (dan toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - thanh trung cua nhung cong ((van toan) OR (dan toan)) cau.
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - thanh trung cua nhung cong ((van toan) or (dan toan)) cau*.