Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
doanh va » doan va, doanh tai, doanh cua
va thong » va thuong, va phuong, he thong
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van
phan dau » phan tu, hang dau

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: doc ((hieu manh) OR (chieu xanh)) - canh doanh va thong ((cong van) OR (song van)) phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu manh) or (chieu xanh)) - canh doanh va thong ((cong van) OR (song van)) phan dau~".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu manh) or (chieu xanh)) - canh doanh va thong ((cong van) OR (song van)) phan dau*.