Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhanh mang » nhanh lang, nhanh quang, nhanh thang
hanh mang » hanh trang, nhanh lang, thanh hang
cua dung » cua dang, cua dong, qua dung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cau » toan cau, phan cau, than cap

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