Perhaps you should try some spelling variations:
per pianoforte » e pianoforte, de pianoforte
pezzi celebre » pezzi celebri
obra teatral » obras teatrales
perez santos » perez carlos, perez galdos, lopez santos
per cantos » per canto
celebre y » celebre el, celeste y

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 celebre y obra teatral ((per cantos) OR (perez santos)) per pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi celebre y obra teatral ((per cantos) OR (perez santos)) per pianoforte.*".