Perhaps you should try some spelling variations:
der pianoforte » de pianoforte, per pianoforte, del pianoforte
pezzi celebre » pezzi celebri
teatrali el » teatrali per, teatral e, teatrales en
de pobreza » la pobreza, y pobreza
caso der » caso de, caso del, ocaso del
d perez » de perez, c perez, p perez

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 celebre ((d perez) OR (de pobreza)) teatrali el caso der pianoforte.~".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celebre ((d perez) OR (de pobreza)) teatrali el caso der pianoforte.*.