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
van van » van ban, tan van, san van
van vat » van chat, nhan vat

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh doanh cua ((nhung cong) OR (hang cong)) ((van van) OR (van vat)) 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)) ((van van) OR (van vat)) ban~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh doanh cua ((nhung cong) or (hang cong)) ((van van) OR (van vat)) ban*.