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 thanh, manh toan
dan than » dan chan, ban than, van than
van tan » van tuan, van ban, van tai

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 (van tan))) or (dan than)) 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 (van tan))) OR (dan than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - thanh trung cua nhung cong ((((van toan) OR (van tan))) or (dan than)) cau".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - thanh trung cua nhung cong ((((van toan) OR (van tan))) or (dan than)) cau*.