Perhaps you should try some spelling variations:
economias aziendale » economia aziendale, economico aziendale
recherche dans » recherches dans, recherche mais, recherche d'une
recherche des » recherche de, recherche les, recherche et
studie der » studien des, studie uber, studium der
studi de » studi di, studi e, studie des

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((studi de) OR (studie der)) ((recherche dans) or (recherche des)) economias aziendale ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((studi de) OR (studie der)) ((recherche dans) OR (recherche des)) economias aziendale ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((studi de) OR (studie der)) ((recherche dans) or (recherche des)) economias aziendale ;".
• Adding a wildcard symbol may retrieve word variants: ((studi de) OR (studie der)) ((recherche dans) or (recherche des)) economias aziendale ;*.