Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
canh doanh » hanh doanh, chinh doanh, doanh doanh
thong cong » trong cong, tong cong, thong thong
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
san toan » van toan, manh toan, xuan toan
dan toan » van toan, dan than, manh toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nhanh - canh doanh cua thong cong ((san toan) or (dan toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - canh doanh cua thong cong ((san toan) OR (dan toan)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh doanh cua thong cong ((san toan) or (dan toan)) ban*.