Perhaps you should try some spelling variations:
"literature arab de isla." » "literatura arabe de isla.", "literature early de isla.", "literatura para de isla.", "literature arabe de isla.", "literature aras de isla.", "literature arabes de isla.", "literature arab de isaac."
"literatura de de isaacm." » "literatura de de isaac.", "literatura de e isaac.", "literatura de fe isaacm.", "literatura de di isaacm."
"literatura _ de islam." » "literatura _ del islam.", "literatura _ e islam.", "literatura _ de ilam.", "literatura _ de isaacm."

Try widening your search to All Fields.

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

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