Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
hoc dung » hoc ung, hoc dan, tac dung
cong dan » cong san, cong tan, huong dan
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu
ho dung » hoi dung, so dung, do dung

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