Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, nhung don
hieu manh » chieu xanh, hieu nganh, dieu hanh
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
tap ban » tai ban, tap van, tap bai

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 manh) or (chieu sach)) - canh doanh cua ((nhung cong) or (hang cong)) bai tap ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sach)) - canh doanh cua ((nhung cong) OR (hang cong)) bai tap ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sach)) - canh doanh cua ((nhung cong) or (hang cong)) bai tap ban*.