Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
viet dung » viet hung, viet huong, viet trung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((dieu hanh) or (chieu sang)) - thanh trung ((viet dung) or (va dung)) cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((dieu hanh) OR (chieu sang)) - thanh trung ((viet dung) OR (va dung)) cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((dieu hanh) or (chieu sang)) - thanh trung ((viet dung) or (va dung)) cong dan toan cau*.