Perhaps you should try some spelling variations:
opera teatral » opere teatrali, obra teatral
de pianoforte » e pianoforte, per pianoforte
teatral en » teatral e, teatrales en, teatro en
di opera » di opere, la opera, _ opera
en casos » de casos, en casa, y casos
casos de » caso de, caso del

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: Biblioteca lirica : pozzi (celebri OR celebra) di opera teatral en casos de pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pozzi (celebri OR celebra) di opera teatral en casos de pianoforte.".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pozzi (celebri OR celebra) di opera teatral en casos de pianoforte.*.