Perhaps you should try some spelling variations:
erato » erat, erano, trato
erale » orale, erase, etale, erle, erole
erable » arable, operable, iterable
eral » eras, erl, erol
prato » plato, pratt, proto

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 (erale OR erable)) OR eral) OR prato) OR era).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((erato or (erale OR erable)) or eral) or prato) or era)".
• Adding a wildcard symbol may retrieve word variants: ((((erato or (erale OR erable)) or eral) or prato) or era)*.