Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
chieu xanh » chieu sach, chieu sang, chieu tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (lieu tinh)) - hanh trang ((cua dung) or (cua dang)) cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (lieu tinh)) - hanh trang ((cua dung) OR (cua dang)) cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (lieu tinh)) - hanh trang ((cua dung) or (cua dang)) cong dan toan cau*.