Perhaps you should try some spelling variations:
trieu minh » trieu tinh, trien minh, trien kinh
chieu xanh » chieu sach, chieu sang, chieu tinh
nguong dan » huong dan
tranh cua » doanh cua, manh cua
cua hang » cua dang, cua nhung, cua cong
nong dan » cong dan, nong san, huong dan
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 ((trieu minh) OR (chieu xanh)) - canh tranh cua hang ((nong dan) OR (nguong dan)) phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((trieu minh) or (chieu xanh)) - canh tranh cua hang ((nong dan) OR (nguong dan)) phan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((trieu minh) or (chieu xanh)) - canh tranh cua hang ((nong dan) OR (nguong dan)) phan cau*.