Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chau tinh » cuu tinh, ha tinh, cua tinh
hanh bang » anh bang, hanh mang, lanh bang
vat dung » van dung, viet dung, mat duong
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, va ung

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: theo ((chieu xanh) OR (chau tinh)) - hanh bang ((va dung) OR (vat dung)) cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chau tinh)) - hanh bang ((va dung) OR (vat dung)) cong dan toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chau tinh)) - hanh bang ((va dung) OR (vat dung)) cong dan toan cau*.