Perhaps you should try some spelling variations:
contributi dalla » contributi alla, contributo della, contributo alla
teoria politica » teologia politica, reforma politica, teoria critica
storia antica » storia gotica, storia romantica, historia antiga
instituto de » institut der, institution der
instituto ad » instituto _, institutos de
istituti di » instituti di, istituto di, istituti pii

Try widening your search to All Fields.

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

• If you are trying to use Boolean operators, they must be ALL CAPS: %contributi dalla%((((instituto de) OR (instituto ad))) OR (istituti di)) ((storia antica) OR (teoria politica))%22.
• Adding a wildcard symbol may retrieve word variants: %contributi dalla%((((instituto de) or (instituto ad))) or (istituti di)) ((storia antica) or (teoria politica))%22*.