Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nong cong » cong cong, tong cong, nang cong
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac
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: theo chieu xanh - thanh ((huong cua) OR (dung cua)) nong cong dan ((than cap) OR (toan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh ((huong cua) OR (dung cua)) nong cong dan ((than cap) or (toan cau))~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh ((huong cua) OR (dung cua)) nong cong dan ((than cap) or (toan cau))*.