Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trang » thanh trung, canh tranh, hanh trinh
trang luon » trang vuong, trong luong, tranh luan
luon ung » luan ung, luoc ung, luon suong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: theo ((chieu tinh) or (dieu hanh)) - hanh trang luon ung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (dieu hanh)) - hanh trang luon ung ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (dieu hanh)) - hanh trang luon ung ((cong dan) or (cong san)) toan cau*.