Perhaps you should try some spelling variations:
opere teatrales » opere teatrali
de pianoforte » e pianoforte, per pianoforte
teatrales en » teatrales tell, naturales en, generales en
en centros » el centro, un centro, de centros
centros de » centro de
cerebro y » cerebral y

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 ((cerebro de) OR (cerebro y)) opere teatrales en centros de pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi ((cerebro de) OR (cerebro y)) opere teatrales en centros de pianoforte.*".