Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tang » hanh trang, anh tang, hanh mang
chu xanh » chu manh, chieu xanh, chua xang
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tap
tang va » trang va, tang van, thang va
va hang » van hang, va nang, va lang

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