Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
lieu tinh » trieu tinh, diep tinh, bien tinh
doanh cua » doanh luan
nhung don » nhung van, nhung bo
tac toan » tap toan, tam toan, hach toan
bai toan » bai tap
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - hanh doanh cua ((nhung don) or (trong cong)) ((tac toan) or (bai toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh doanh cua ((nhung don) OR (trong cong)) ((tac toan) OR (bai toan)) ban.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh doanh cua ((nhung don) or (trong cong)) ((tac toan) or (bai toan)) ban*.