Perhaps you should try some spelling variations:
gases generales » bases generales, rasgos generales, leyes generales
pezzi celebro » pezzi celebri
generales un » generales en, generales san, generales que
celebro de » cerebro de, celebri di
de gases » de clases
caso del » caso de
caso en » casos en

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 celebro de gases generales un ((caso en) OR (caso del)) pianoforte.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Biblioteca lirica : pezzi celebro de gases generales un ((caso en) OR (caso del)) pianoforte.*".