Perhaps you should try some spelling variations:
"literatura para _ islam." » "literatura arabe _ islam.", "literatura al _ islam.", "literatura a _ islam."
"literatura el e isaac." » "literatura del e isaac.", "literatura en e isaac.", "literatura e e isaac.", "literatura el de isaac.", "literatura el en isaac.", "literatura el _ isaac.", "literatura el el isaac."
"literatura de di isaac." » "literatura de de isaac.", "literatura de _ isaac.", "literatura de c isaac.", "literatura de mi isaac.", "literatura de si 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 e isaac.") or ("literatura de di isaac."))) or ("literatura para _ islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura el e isaac.") OR ("literatura de di isaac."))) OR ("literatura para _ islam.")).
• Removing quotes may allow a broader search: (((( literatura el e isaac. ) or ( literatura de di isaac. ))) or ( literatura para _ islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura el e isaac.") or ("literatura de di isaac."))) or ("literatura para _ islam."))*.