Perhaps you should try some spelling variations:
science stories » science studies, science theories
science series » science services, science theories, sciences serious
di science » i science, ii science, di scienze
series e » series 1, series 10, series 11
e morais » de morais, b morais, e morris

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 _ morali ) OR ( biblioteca di science series e morais )).
• Adding a wildcard symbol may retrieve word variants: (( biblioteca di science stories _ morali ) or ( biblioteca di science series e morais ))*.