Perhaps you should try some spelling variations:
storia romantica » storia romanza, storia politica, teoria semantica
institutos de » instituto de, institutions de, institutes der
storia antica » storia gotica, historia antiga, storia critica
instituto ad » instituto de, instituto _
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: (%contributo OR %contributi) della%((((instituto ad) OR (institutos de))) OR (istituti di)) ((storia antica) OR (storia romantica))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(%contributo or %contributi) della%((((instituto ad) OR (institutos de))) or (istituti di)) ((storia antica) or (storia romantica))%22".
• Adding a wildcard symbol may retrieve word variants: (%contributo or %contributi) della%((((instituto ad) OR (institutos de))) or (istituti di)) ((storia antica) or (storia romantica))%22*.