Perhaps you should try some spelling variations:
contribute della » contributo della, contributo delle, contributi dalla
historia antiga » historia antigua, historia antiqua, historia argentina
instituto de » institut der, institution der
istituti pii » istituti di, istituiti sic, instituti di
istituto di » instituto ad

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: %contribute della%((((istituto di) OR (instituto de))) OR (istituti pii)) historia antiga%22.
• Adding a wildcard symbol may retrieve word variants: %contribute della%((((istituto di) or (instituto de))) or (istituti pii)) historia antiga%22*.