Perhaps you should try some spelling variations:
"literatura espana e islam." » "literatura espanola e islam.", "literatura mexicana e islam.", "literatura despana e islam.", "literatura enspana e islam.", "literatura delspana e islam.", "literatura espana en islam.", "literatura espana el islam.", "literatura espana e islas.", "literatura espana del islam."
"literatura el de isaac." » "literatura del de isaac.", "literatura en de isaac.", "literatura de de isaac.", "literatura enl de isaac.", "literatura dell de isaac."
"literatura e de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura del de isaac.", "literatura y de isaac.", "literatura _ de isaac."

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