Perhaps you should try some spelling variations:
parque natural » parque naturales, parques naturales, que natural
y pianoforte » e pianoforte, _ pianoforte, de pianoforte
natural un » natural una, natural en, naturales un
un central » un centro, _ central, la central
celebre y » celeste y
central y » central de, centro y, centros 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 ((celebre el) OR (celebre y)) parque natural un central y pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi ((celebre el) OR (celebre y)) parque natural un central y pianoforte.".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : pezzi ((celebre el) OR (celebre y)) parque natural un central y pianoforte.*.