Perhaps you should try some spelling variations:
en pianoforte » e pianoforte, per pianoforte, del pianoforte
teatral e » teatral de, teatrales en, teatral tell
casos en » casos de
p perez » d perez, puy perez, de perez
c perez » d perez, de perez
e casos » de casos, en casos, y casos
pezzi » pozzi

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 ((p perez) OR (c perez)) teatral e casos en pianoforte.~".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celebri ((p perez) OR (c perez)) teatral e casos en pianoforte.*.