Perhaps you should try some spelling variations:
la republica » la republique, _ republican
di convegno » del convegno
i convegno » iv convegno, vi convegno, iii convegno
senato la » sento la, senat la, senator a
de sala » de salas, de saa, de saba

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: ((i convegno) OR (di convegno)) de sala (zuccari OR zaccaria) / senato la republica.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((i convegno) or (di convegno)) de sala (zuccari OR zaccaria) / senato la republica".
• Adding a wildcard symbol may retrieve word variants: ((i convegno) or (di convegno)) de sala (zuccari OR zaccaria) / senato la republica*.