Perhaps you should try some spelling variations:
trieu minh » trieu tinh, trien minh, trien kinh
chieu xanh » chieu sach, chieu sang, chieu tinh
tranh cua » doanh cua, manh cua
tong dan » tuong dan, thong dan, trong dan
cua han » cua hang, cua nhan, cua phan
can cau » van cau, ban cau, cac cau
ca cau » cua cau, cac cau, ca cac

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 han tong dan ((ca cau) OR (can cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((trieu minh) or (chieu xanh)) - canh tranh cua han tong dan ((ca cau) OR (can cau))~".
• Adding a wildcard symbol may retrieve word variants: hoc ((trieu minh) or (chieu xanh)) - canh tranh cua han tong dan ((ca cau) OR (can cau))*.