Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
hoan cua » hoa cua, toan cua, han cua
phan cau » phan cac, phan tu, phan lap
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: theo chu xanh - doanh hoan cua ((nhung cong) OR (thong cong)) dan ((phan cau) OR (phan dau))~.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - doanh hoan cua ((nhung cong) or (thong cong)) dan ((phan cau) or (phan dau))*.