Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh
hoc chieu » hoc thieu, ho chieu, hoc hien
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tap

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: hoc chieu xanh - ((hanh trinh) OR (hanh chinh)) cua dung ((cong dan) OR (cong tan)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - ((hanh trinh) OR (hanh chinh)) cua dung ((cong dan) or (cong tan)) toan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((hanh trinh) OR (hanh chinh)) cua dung ((cong dan) or (cong tan)) toan cau*.