Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh doanh » hanh doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
nhung don » nhung van, nhung bo
bang cong » dang cong, bang song, hang cong
toan tai » doanh tai, toan ban, toan cao
toan tap » toan 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 thieu xanh - canh doanh cua ((nhung don) OR (bang cong)) dan ((toan tai) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh doanh cua ((nhung don) or (bang cong)) dan ((toan tai) or (toan tap))*.