Perhaps you should try some spelling variations:
"literatura sabe de isaac." » "literatura isabel de isaac.", "literatura arabe de isaac.", "literatura sobre de isaac."
"literatura e el islam." » "literatura en el islam.", "literatura del el islam.", "literatura de el islam.", "literatura es el islam.", "literatura e el islas.", "literatura e el isla."
"literatura de de isaacm." » "literatura de de islam.", "literatura de e isaac.", "literatura de fe isaacm.", "literatura de di 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 sabe de isaac.") or ("literatura de de isaacm."))) or ("literatura e el islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura sabe de isaac.") OR ("literatura de de isaacm."))) OR ("literatura e el islam.")).
• Removing quotes may allow a broader search: (((( literatura sabe de isaac. ) or ( literatura de de isaacm. ))) or ( literatura e el islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura sabe de isaac.") or ("literatura de de isaacm."))) or ("literatura e el islam."))*.