Perhaps you should try some spelling variations:
"literature arab _ islam." » "literatura arabe _ islam.", "literature early _ islam.", "literatura para _ islam."
"literatura en e islam." » "literatura de e islam.", "literatura espana e islam.", "literatura en el islam.", "literatura en e islas.", "literatura en del islam.", "literatura en de islam.", "literatura en le islam."
"literatura en en islam." » "literatura de en islam.", "literatura espana en islam.", "literatura en el islam.", "literatura en un islam.", "literatura en en ilam.", "literatura en eln islam.", "literatura en den islam.", "literatura en len 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: (("literature arab _ islam.") OR ((("literatura en e islam.") OR ("literatura en en islam."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literature arab _ islam.\") or (((\"literatura en e islam.\") OR (\"literatura en en islam.\"))))~".
• Removing quotes may allow a broader search: (( literature arab _ islam. ) or ((( literatura en e islam. ) OR ( literatura en en islam. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("literature arab _ islam.") or ((("literatura en e islam.") OR ("literatura en en islam."))))*.