Perhaps you should try some spelling variations:
opera central » sierra central, tierra central
en pianoforte » e pianoforte, per pianoforte, del pianoforte
celebro la » melero la, celebrando la
central de » centro de, centros de
genero la » general la, genero una, genero y
de caso » de casos
caso en » casos en, 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 : pezzi ((celebro la) OR (genero la)) opera central de caso en pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi ((celebro la) OR (genero la)) opera central de caso en pianoforte.".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi ((celebro la) OR (genero la)) opera central de caso en pianoforte.*.