Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
nhung cong » dung cong, thong cong, nhung don
hien xanh » hien hanh, hien nhanh, chieu xanh
hang cong » dang cong, hang nong, bang cong
chon tu » con tu, cho tu, chon tao
choi tu » hoi tu, cho tu, choi thuc

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 - hanh doanh luan ((nhung cong) OR (hang cong)) dan ((chon tu) OR (choi tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh doanh luan ((nhung cong) or (hang cong)) dan ((chon tu) OR (choi tu))~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh doanh luan ((nhung cong) or (hang cong)) dan ((chon tu) OR (choi tu))*.