Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
dang thong » dang thuong, dong thong, dang trong
mang thong » mang trong, hang thuong, dang thuong
doc chieu » doc hieu, doi chieu, toc thieu
tri van » thi van, tri va, trinh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu sach - hanh doanh luan ((dang thong) or (mang thong)) quan tri van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu sach - hanh doanh luan ((dang thong) OR (mang thong)) quan tri van.
• Adding a wildcard symbol may retrieve word variants: doc chieu sach - hanh doanh luan ((dang thong) or (mang thong)) quan tri van*.