Perhaps you should try some spelling variations:
thanh toan » thanh hoa, tinh toan
hanh trang » thanh trung, canh tranh, hanh trinh
trang cua » tranh cua, tang cua, trung cua
dung cong » dung trong
30 trieu » 25 trieu
cua dung » cua dang, cua dong, qua dung
dan toan » van toan, dan than, manh toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - hanh trang cua dung cong ((dan toan) OR (((thanh toan) OR (thanh san)))) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - hanh trang cua dung cong ((dan toan) or (((thanh toan) OR (thanh san)))) ban~".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - hanh trang cua dung cong ((dan toan) or (((thanh toan) OR (thanh san)))) ban*.