Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
khong cong » khong cang, chong cong, khong con
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
doanh cua » doanh luan
doan van » doan va, hoang van, luan van
dan van » dang van, dao van, tan van

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