Perhaps you should try some spelling variations:
per pianoforte » e pianoforte, de pianoforte
tell caso » el caso, del caso
del open » el open, del orden, en open
caso per » caso de, caso del, caso en
di open » di opere
pezzi » pozzi
celebri » celebre, celebra, celebro
teatrales » centrales

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 : pezzi celebri ((di open) OR (del open)) teatrales tell caso per pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi celebri ((di open) OR (del open)) teatrales tell caso per pianoforte.".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celebri ((di open) OR (del open)) teatrales tell caso per pianoforte.*.