Perhaps you should try some spelling variations:
ho trieu » mot trieu, 25 trieu, ho chieu
30 trieu » 25 trieu
vat dung » van dung, viet dung, mat duong
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan cau » toan cau, quan cau, tuan cu
va dung » van dung, va duong, va ung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho trieu) or (30 trieu)) tinh - canh tranh ((va dung) OR (vat dung)) cong van tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho trieu) OR (30 trieu)) tinh - canh tranh ((va dung) OR (vat dung)) cong van tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) or (30 trieu)) tinh - canh tranh ((va dung) OR (vat dung)) cong van tuan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) or (30 trieu)) tinh - canh tranh ((va dung) OR (vat dung)) cong van tuan cau*.