Perhaps you should try some spelling variations:
del pianoforte » de pianoforte, der pianoforte, e pianoforte
opera teatral » opere teatrali, obra teatral
teatral e » teatral de, teatrales en, teatral tell
caso del » caso de
e caso » el caso, de caso, en caso
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 di) OR (cerebral y)) opera teatral e caso del pianoforte.~".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi ((celebri di) OR (cerebral y)) opera teatral e caso del pianoforte.*.