Perhaps you should try some spelling variations:
thien bang » khien bang, thien dang, thien nang
thien ban » thien van, phien ban, khien ban
vat dung » van dung, viet dung, mat duong
cong san » cong tac
san tuan » van tuan, san luan, san quan
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: toc ((thien bang) or (thien ban)) - canh tranh ((vat dung) OR (va dung)) cong san tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thien bang) OR (thien ban)) - canh tranh ((vat dung) OR (va dung)) cong san tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thien bang) or (thien ban)) - canh tranh ((vat dung) OR (va dung)) cong san tuan cau".
• Adding a wildcard symbol may retrieve word variants: toc ((thien bang) or (thien ban)) - canh tranh ((vat dung) OR (va dung)) cong san tuan cau*.