Perhaps you should try some spelling variations:
hang doanh » hanh doanh, nhung doanh, van doanh
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, nhung don
hang cong » dang cong, hang nong, bang cong
hoc hieu » hoc thieu, hoc hien, doc hieu
hieu cua » hieu qua, dieu cua, bieu cua
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu cua - ((canh doanh) or (hang doanh)) cua ((nhung cong) or (hang cong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cua - ((canh doanh) OR (hang doanh)) cua ((nhung cong) OR (hang cong)) dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cua - ((canh doanh) or (hang doanh)) cua ((nhung cong) or (hang cong)) dan toan cau*.