Perhaps you should try some spelling variations:
obras treatrales » obras teatrales, obra teatral, obras generales
pezzi celebra » pezzi celebri
de pianoforte » per pianoforte
treatrales y » trimestrales y, teatrales en, centrales y
celebra di » celebri di
di obras » de obras, diaz obras, diez obras

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 celebra di obras treatrales y canto ((e pianoforte) OR (de pianoforte)).~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi celebra di obras treatrales y canto ((e pianoforte) OR (de pianoforte)).*".