Perhaps you should try some spelling variations:
"literatura maria de isaac." » "literatura america de isaac.", "literatura memoria de isaac.", "literatura musica de isaac.", "literatura maria del isaac."
"literatura del del islam." » "literatura de del islam.", "literatura en del islam.", "literatura edel del islam.", "literatura del de islam.", "literatura del dem islam."
"literatura e el islam." » "literatura de el islam.", "literatura en el islam.", "literatura es el 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 e el islam.") or ("literatura del del islam."))) or ("literatura maria de isaac."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura e el islam.") OR ("literatura del del islam."))) OR ("literatura maria de isaac.")).
• Removing quotes may allow a broader search: (((( literatura e el islam. ) or ( literatura del del islam. ))) or ( literatura maria de isaac. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura e el islam.") or ("literatura del del islam."))) or ("literatura maria de isaac."))*.