Perhaps you should try some spelling variations:
opera teatral » opere teatrali, obra teatral
teatral de » teatral e, central de, teatro de
di opera » di opere, la opera, _ opera
calor yn » calor en, valor y, valor en
calor y » valor y
pezzi » pozzi
celebri » celebre, celebra, celebro

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 celebri di opera teatral de ((calor y) OR (calor yn)) pianoforte.~".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi celebri di opera teatral de ((calor y) OR (calor yn)) pianoforte.*.