Perhaps you should try some spelling variations:
del pianoforte » de pianoforte, der pianoforte, e pianoforte
opera central » sierra central, tierra central
celebro la » celebrando la
central de » centro de, centros de
melero la » gerlero la, genero la, madero la
caso del » caso de
de caso » de casos

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 ((celebro la) OR (melero la)) opera central de caso del pianoforte.~".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi ((celebro la) OR (melero la)) opera central de caso del pianoforte.*.