Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
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
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: toc thieu sach - hanh doanh luan ((dang thong) OR (mang thong)) quan tri van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu sach - hanh doanh luan ((dang thong) OR (mang thong)) quan tri van".
• Adding a wildcard symbol may retrieve word variants: toc thieu sach - hanh doanh luan ((dang thong) OR (mang thong)) quan tri van*.