Perhaps you should try some spelling variations:
mot trieu » mot chieu, mot tri, mon triet
hanh tang » hanh trang, anh tang, hanh mang
chua nang » chua xang, kha nang, cuu nang
hoang van » hang va
30 trieu » 25 trieu
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap
chuc » thuc, chu, phuc

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