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
san toan » van toan, manh toan, xuan toan
dan toan » van toan, manh toan, xuan 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: 30 trieu tinh - thanh trung cua nhung cong ((san toan) or (((dan toan) 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 ((san toan) OR (((dan toan) 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 ((san toan) or (((dan toan) OR (dan than)))) cau".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - thanh trung cua nhung cong ((san toan) or (((dan toan) OR (dan than)))) cau*.