Perhaps you should try some spelling variations:
"literatura _ de islam." » "literatura _ del islam.", "literatura _ de isla.", "literatura _ de ilam.", "literatura _ de islas.", "literatura _ ddel islam."
"literatura _ e islam." » "literatura _ el islam.", "literatura _ e islas.", "literatura _ del islam."
"literatura de di isla." » "literatura de de isla.", "literatura de de islas.", "literatura de mi isla.", "literatura de si isla."

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 islam.") OR ("literatura _ e islam."))) or ("literatura de di isla."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura _ de islam.") OR ("literatura _ e islam."))) OR ("literatura de di isla.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura _ de islam.\") OR (\"literatura _ e islam.\"))) or (\"literatura de di isla.\"))".
• Removing quotes may allow a broader search: (((( literatura _ de islam. ) OR ( literatura _ e islam. ))) or ( literatura de di isla. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura _ de islam.") OR ("literatura _ e islam."))) or ("literatura de di isla."))*.