Perhaps you should try some spelling variations:
erato » erano, trato, arato, ersto, eralo
erate » erste, erase, urate, erale, erane
erat » erst, eral, eran
eras » ers
prato » plato, pratt, prado
proto » photo

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((erato OR erate) OR (erat OR eras)) OR (prato OR proto)) OR era).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((erato or erate) or (erat OR eras)) or (prato or proto)) or era)".
• Adding a wildcard symbol may retrieve word variants: ((((erato or erate) or (erat OR eras)) or (prato or proto)) or era)*.