Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
san than » sang than, san thanh, van than
ban than » ban thanh, van thanh, ban hang
ve dung » ve duong, va dung, te dung
ve rung » le trung, he trung, va trung

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