Perhaps you should try some spelling variations:
"literatura espana e islam." » "literatura espanola e islam.", "literatura mexicana e islam.", "literatura espana en islam.", "literatura espana el islam.", "literatura espana e islas.", "literatura espana del islam."
"literatura del de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura del dean isaac."
"literatura le una idea." » "literatura ele una idea.", "literatura de una idea.", "literatura e una idea.", "literatura le la idea.", "literatura vale una idea."

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