Perhaps you should try some spelling variations:
hanh doanh » chinh doanh, doanh doanh, kinh doanh
chieu sach » chinh sach, chiet tach, chieu sang
hang doanh » nhung doanh, van doanh, dung doanh
hieu lang » chieu sang, hieu quang, nhieu tang
cua thong » cua thuong, cua khong, cua tong
thong tan » thong than, thong tran, thong tin
tan van » tran van, tang van, luan van

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

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