Perhaps you should try some spelling variations:
mot trieu » mot chieu, mot tri, mon triet
hanh tang » hanh trang, anh tang, hanh mang
dang song » nang song, dang cong, bang song
30 trieu » 25 trieu
tang cua » mang cua, hang cua, tang luan
cua dang » cua cong, cua ban
van toan » van tuan, van thanh, manh toan
van tan » van tuan, van ban, van tai

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) OR (mot trieu)) tinh - hanh tang cua dang song ((van toan) OR (van tan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((30 trieu) or (mot trieu)) tinh - hanh tang cua dang song ((van toan) OR (van tan)) cau~".
• Adding a wildcard symbol may retrieve word variants: ((30 trieu) or (mot trieu)) tinh - hanh tang cua dang song ((van toan) OR (van tan)) cau*.