Perhaps you should try some spelling variations:
pobreza central » problema central
per pianoforte » e pianoforte, de pianoforte
agentes per » agentes de, agentes del
celebri la » celebri di
central de » centro de, centros de
de agentes » de fuentes
pezzi » pozzi

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 la pobreza central de agentes per pianoforte.~.
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celebri la pobreza central de agentes per pianoforte.*.