Perhaps you should try some spelling variations:
per pianoforte » e pianoforte, de pianoforte
agentes per » agentes de, agentes del
celebri de » celebri di
teatral de » teatral e, teatro de, teatros de
central de » centro de, centros de
de obra » de obras
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 de obra ((teatral de) OR (central de)) agentes per pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi celebri de obra ((teatral de) OR (central de)) agentes per pianoforte.".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celebri de obra ((teatral de) OR (central de)) agentes per pianoforte.*.