Perhaps you should try some spelling variations:
de pianoforte » e pianoforte, per pianoforte
obra teatro » obra teatral, para teatro
cerebro de » cerebro y
teatro de » teatro del, centro de, dentro de
casos de » caso de, caso 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) OR (cerebro de)) obra teatro de casos de pianoforte.~".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi ((celebri di) OR (cerebro de)) obra teatro de casos de pianoforte.*.