Perhaps you should try some spelling variations:
"literatura ele el islam." » "literatura el el islam.", "literatura de el islam.", "literatura del el islam.", "literatura ele en islam.", "literatura maele el islam.", "literatura neale el islam."
"literatura en de isaac." » "literatura de de isaac.", "literatura espana de isaac."
"literatura y de islam." » "literatura y del islam.", "literatura y de isla.", "literatura y e islam."

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 ele el islam.") or ("literatura en de isaac."))) or ("literatura y de islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura ele el islam.") OR ("literatura en de isaac."))) OR ("literatura y de islam.")).
• Removing quotes may allow a broader search: (((( literatura ele el islam. ) or ( literatura en de isaac. ))) or ( literatura y de islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura ele el islam.") or ("literatura en de isaac."))) or ("literatura y de islam."))*.