Perhaps you should try some spelling variations:
historia antigua » historia antiqua
contributi dalla » contributi alla, contributo della, contributo alla
historia antiga » historia antiqua, historia argentina
instituto ad » instituto de, instituto _, institutos de
istituti di » instituti di, istituto di, istituti pii

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 ad) OR (istituti di)) ((historia antiga) OR (historia antigua))%22.
• Adding a wildcard symbol may retrieve word variants: %contributi dalla%((instituto ad) or (istituti di)) ((historia antiga) or (historia antigua))%22*.