Perhaps you should try some spelling variations:
per pianoforte » e pianoforte, de pianoforte
pezzi celeste » pezzi celebri
opere teatral » opere teatrali
obra teatral » obras teatrales
canto per » canto para, canto de, canto del
v canto » y canto, 6 canto, el canto

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 celeste y ((opere teatral) OR (obra teatral)) v canto per pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi celeste y ((opere teatral) OR (obra teatral)) v canto per pianoforte.".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celeste y ((opere teatral) OR (obra teatral)) v canto per pianoforte.*.