Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
tang van » dang van, hoang van, trong van
tan van » tran van, luan van, dang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh doanh cua ((nhung cong) OR (hang cong)) ((tan van) or (tang van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh doanh cua ((nhung cong) OR (hang cong)) ((tan van) OR (tang van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh doanh cua ((nhung cong) OR (hang cong)) ((tan van) or (tang van)) ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh doanh cua ((nhung cong) OR (hang cong)) ((tan van) or (tang van)) ban*.