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