Perhaps you should try some spelling variations:
bases generales » rasgos generales, bases neurales, leyes generales
de pianoforte » e pianoforte, per pianoforte
generales de » general de, general del
celebri de » celebri di
cuentos de » documentos de, cuentos tell
de bases » de base, de gases, de bayes

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 OR pozzi) celebri de bases generales de cuentos de pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : (pezzi OR pozzi) celebri de bases generales de cuentos de pianoforte.".
• Adding a wildcard symbol may retrieve word variants: Biblioteca lirica : (pezzi OR pozzi) celebri de bases generales de cuentos de pianoforte.*.