Perhaps you should try some spelling variations:
science stories » science studies, science series, science theories
di science » i science, ii science, di scienze
de morais » de morbis, de moraes, de morale
e morali » e morale, e moral
e morais » b morais, e morris, e morale

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: biblioteca di science stories ((e morali) OR (((e morais) OR (de morais)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "biblioteca di science stories ((e morali) or (((e morais) OR (de morais))))".
• Adding a wildcard symbol may retrieve word variants: biblioteca di science stories ((e morali) or (((e morais) OR (de morais))))*.