Perhaps you should try some spelling variations:
"literatura arabe et islam." » "literatura breve et islam.", "literatura e et islam.", "literatura al et islam.", "literatura arabe en islam.", "literatura arabe e islam.", "literatura arabe el islam.", "literatura arabe del islam.", "literatura arabe al islam."
"literatura de e islas." » "literatura de fe islas.", "literatura de _ islas.", "literatura de a islas."
"literatura de el islam." » "literatura de fel islam.", "literatura de _l islam.", "literatura de al islam."

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: (((("literatura de e islas.") OR ("literatura de el islam."))) OR ("literatura arabe et islam."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura de e islas.\") OR (\"literatura de el islam.\"))) or (\"literatura arabe et islam.\"))~".
• Removing quotes may allow a broader search: (((( literatura de e islas. ) OR ( literatura de el islam. ))) or ( literatura arabe et islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura de e islas.") OR ("literatura de el islam."))) or ("literatura arabe et islam."))*.