Perhaps you should try some spelling variations:
"literatura de _l islam." » "literatura de el islam.", "literatura de al islam.", "literatura de _ islam."
"literatura de e islam." » "literatura de el islam.", "literatura de del islam.", "literatura de fe islam.", "literatura de _ islam."
"literatura de e islas." » "literatura de el islam.", "literatura de el islas.", "literatura de fe islas.", "literatura de _ islas."

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura de e islam.\") OR (\"literatura de e islas.\"))) OR (\"literatura de _l islam.\"))~".
• Removing quotes may allow a broader search: (((( literatura de e islam. ) OR ( literatura de e islas. ))) OR ( literatura de _l islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura de e islam.") OR ("literatura de e islas."))) OR ("literatura de _l islam."))*.