Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
canh doanh » hanh doanh, chinh doanh, doanh doanh
hien xanh » hien hanh, hien nhanh, chieu xanh
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
van tuan » van ban, anh tuan
van quan » van ban

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