Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh hinh » hanh chinh, hanh dinh, hanh trinh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua nhung » va nhung
30 trieu » 25 trieu
san toan » van toan, manh toan, xuan toan
dan toan » van toan, dan than, manh 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 - ((hanh hinh) OR (hanh tinh)) cua nhung cong ((san toan) or (dan toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - ((hanh hinh) OR (hanh tinh)) cua nhung cong ((san toan) OR (dan toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - ((hanh hinh) OR (hanh tinh)) cua nhung cong ((san toan) or (dan toan)) ban".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - ((hanh hinh) OR (hanh tinh)) cua nhung cong ((san toan) or (dan toan)) ban*.