Perhaps you should try some spelling variations:
opera teatrali » opere teatrali
de pianoforte » e pianoforte, per pianoforte
obra teatral » obras teatrales
per cantos » per canto, perez santos
cantos de » cuentos de, puntos de
pezzi » pozzi
celebri » celebre, celebra, celebro

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi celebri _ ((opera teatrali) OR (obra teatral)) per cantos de pianoforte.~".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celebri _ ((opera teatrali) OR (obra teatral)) per cantos de pianoforte.*.