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

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 fe islam.") OR ((("literatura de e islam.") OR ("literatura de del islam."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura de fe islam.\") OR (((\"literatura de e islam.\") OR (\"literatura de del islam.\"))))*".
• Removing quotes may allow a broader search: (( literatura de fe islam. ) OR ((( literatura de e islam. ) OR ( literatura de del islam. ))))*.