Perhaps you should try some spelling variations:
"literatura maria de isla." » "literatura america de isla.", "literatura memoria de isla.", "literatura musica de isla.", "literatura maria del isla."
"literatura maria de isaac." » "literatura america de isaac.", "literatura memoria de isaac.", "literatura musica de isaac.", "literatura maria del isaac."
"literatura de e islam." » "literatura de el islam.", "literatura de e islas.", "literatura de del islam.", "literatura de fe islam.", "literatura de _ 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 de e islam.") or ((("literatura maria de isla.") OR ("literatura maria de isaac."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura de e islam.") OR ((("literatura maria de isla.") OR ("literatura maria de isaac.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura de e islam.\") or (((\"literatura maria de isla.\") OR (\"literatura maria de isaac.\"))))".
• Removing quotes may allow a broader search: (( literatura de e islam. ) or ((( literatura maria de isla. ) OR ( literatura maria de isaac. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura de e islam.") or ((("literatura maria de isla.") OR ("literatura maria de isaac."))))*.