Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
chinh cau » chinh chau, chinh ca, chinh can
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
chan cau » phan cau, can cau, nhanh cau

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