Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
mang cua » manh cua, dung cua, ban cua
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than cap » khan cap, thanh lap, thanh cac

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 tieu xanh - hanh mang cua dung ((cong dan) OR (cong tan)) ((than cap) OR (phan tu))~.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh mang cua dung ((cong dan) or (cong tan)) ((than cap) or (phan tu))*.