Perhaps you should try some spelling variations:
mot trieu » mot chieu, mot tri, mon triet
hanh tang » hanh trang, anh tang, hanh mang
chua bang » chua nang, chua xang, thuat bang
hoang van » hang va
30 trieu » 25 trieu
chu bang » thu bang, chuc nang, chu quang
van tuan » van quan, van ban, anh tuan
tuan cau » toan cau, quan cau, tuan cu

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