Perhaps you should try some spelling variations:
"literatura al del islam." » "literatura el del islam.", "literatura del del islam.", "literatura e del islam.", "literatura al el islam.", "literatura al den islam.", "literatura al debil islam.", "literatura al duelo islam."
"literatura en del islam." » "literatura espana del islam.", "literatura en el islam."
"literatura de fe islam." » "literatura de e islam.", "literatura de de islam.", "literatura de el islam."

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

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