Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu lang » chieu sang, hieu quang, nhieu tang
doanh cua » doanh luan
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 (chiet tach))) or (hieu lang)) - hanh doanh cua thong thong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu sach) OR (chiet tach))) OR (hieu lang)) - hanh doanh cua thong thong tan van ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((chieu sach) OR (chiet tach))) or (hieu lang)) - hanh doanh cua thong thong tan van ban*".