Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
hien xanh » hien hanh, hien nhanh, chieu xanh
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
cong van » cong vang, song van, cong tan
cong san » cong tac
tan ban » toan ban, tang ban, van ban

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - canh doanh cua khong ((cong van) OR (cong san)) tan ban~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh doanh cua khong ((cong van) OR (cong san)) tan ban*.