Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh doanh » hanh doanh, chinh doanh, doanh doanh
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hoc thieu » toc thieu, hoc hien
cong doan » cong dan, cong hoan, dong doanh
doan van » doan va, hoang van, luan van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - ((canh doanh) or (doanh hoan)) ((va nhung) or (cua cong)) cong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((canh doanh) OR (doanh hoan)) ((va nhung) OR (cua cong)) cong doan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((canh doanh) or (doanh hoan)) ((va nhung) or (cua cong)) cong doan van ban*.