Perhaps you should try some spelling variations:
sobra central » sierra central, sobre control, some central
en pianoforte » e pianoforte, per pianoforte, del pianoforte
obra teatral » obras teatrales
el cartas » en cartas, ed cartas, de cartas
cartas en » caras en, caracas en, cartas del
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 ((sobra central) OR (obra teatral)) el cartas en pianoforte.~".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celebri di ((sobra central) OR (obra teatral)) el cartas en pianoforte.*.