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

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