Perhaps you should try some spelling variations:
canh doanh » chinh doanh, doanh doanh, kinh doanh
hanh doanh » hang 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
doan van » doan va, hoang van, luan 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) OR (hanh doanh)) cua ((khong cong) OR (thong cong)) doan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((canh doanh) OR (hanh doanh)) cua ((khong cong) or (thong cong)) doan van ban~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((canh doanh) OR (hanh doanh)) cua ((khong cong) or (thong cong)) doan van ban*.