Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
doanh cua » doanh luan
dung cong » dung trong
bang cong » dang cong, bang song, hang cong
dan han » dan chan, dan than, dan hanh
han tu » phan tu, hanh tu, ban tu

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 ((hieu manh) OR (chieu xanh)) - hanh doanh cua ((dung cong) OR (bang cong)) dan han tu~.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - hanh doanh cua ((dung cong) or (bang cong)) dan han tu*.