Perhaps you should try some spelling variations:
"literatura arabe et islam." » "literatura breve et islam.", "literatura de et islam.", "literatura e et islam.", "literatura arabe en islam.", "literatura arabe e islam.", "literatura arabe el islam.", "literatura arabe del islam."
"literatura arabe una idea." » "literatura breve una idea.", "literatura de una idea.", "literatura e una idea.", "literatura arabe un idea.", "literatura caribe una idea.", "literatura arte una idea.", "literatura arabe la idea."
"literatura en _ isla." » "literatura de _ isla.", "literatura espana _ isla."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura arabe et islam.") or ("literatura en _ isla."))) or ("literatura arabe una idea."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura arabe et islam.") OR ("literatura en _ isla."))) OR ("literatura arabe una idea.")).
• Removing quotes may allow a broader search: (((( literatura arabe et islam. ) or ( literatura en _ isla. ))) or ( literatura arabe una idea. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura arabe et islam.") or ("literatura en _ isla."))) or ("literatura arabe una idea."))*.