Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
tieu xanh » tieu danh, dieu hanh, tien anh
anh mang » hanh mang, anh bang, anh dang
anh dong » anh huong, anh son
ban cong » bang cong, van cong, phan cong
cong san » cong tac
san dan » sanh dan, shan dan, ban dan

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) OR (chieu xanh)) - ((anh mang) OR (anh dong)) cua ban cong san dan ca~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) OR (chieu xanh)) - ((anh mang) or (anh dong)) cua ban cong san dan ca~".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) OR (chieu xanh)) - ((anh mang) or (anh dong)) cua ban cong san dan ca*.