Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
thang long » thanh cong
hieu lang » chieu sang, hieu quang, nhieu tang
doanh cua » doanh luan
cua thang » cua hang, cua thanh, xua thang
long dan » long doan, cong dan, nong dan
tinh » trinh, dinh, minh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((trieu tinh) or (hieu lang)) - canh doanh cua thang long dan ((toan ban) OR (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((trieu tinh) OR (hieu lang)) - canh doanh cua thang long dan ((toan ban) OR (van ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((trieu tinh) or (hieu lang)) - canh doanh cua thang long dan ((toan ban) OR (van ban))".
• Adding a wildcard symbol may retrieve word variants: hoc ((trieu tinh) or (hieu lang)) - canh doanh cua thang long dan ((toan ban) OR (van ban))*.