Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
khong cong » thong cong, khong cang, chong cong
cong thanh » dong thanh, cong trinh, cong tan
kieu tinh » lieu tinh, trieu tinh, bien tinh
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
san cau » ban cau, can cau, ran cau
van cau » van dau, van hau, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((kieu tinh) or (diep tinh)) - canh doanh cua khong cong thanh ((san cau) OR (van cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((kieu tinh) OR (diep tinh)) - canh doanh cua khong cong thanh ((san cau) OR (van cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((kieu tinh) or (diep tinh)) - canh doanh cua khong cong thanh ((san cau) OR (van cau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((kieu tinh) or (diep tinh)) - canh doanh cua khong cong thanh ((san cau) OR (van cau))*.