Perhaps you should try some spelling variations:
trien minh » trien kinh, tien minh, trieu minh
chieu xanh » chieu sach, chieu sang, chieu tinh
thang long » thanh cong
tranh cua » doanh cua, manh cua
hang nong » han tong
doan phan » doanh phan, toan phan, dan phan
phan cau » phan dau, phan cac, phan tu

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: hoc ((trien minh) OR (chieu xanh)) - canh tranh cua ((hang nong) OR (thang long)) doan phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((trien minh) or (chieu xanh)) - canh tranh cua ((hang nong) OR (thang long)) doan phan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((trien minh) or (chieu xanh)) - canh tranh cua ((hang nong) OR (thang long)) doan phan cau*.