Perhaps you should try some spelling variations:
"literatura del _ islam." » "literatura en _ islam."
"literatura es el imam." » "literatura en el imam.", "literatura e el imam.", "literatura el el imam.", "literatura es del imam.", "literatura es el ima.", "literatura es el iman."
"literatura de a islam." » "literatura de al islam.", "literatura de e islam.", "literatura de a islas.", "literatura de la islam.", "literatura de _ 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 a islam.") or ("literatura del _ islam."))) or ("literatura es el imam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura de a islam.") OR ("literatura del _ islam."))) OR ("literatura es el imam."))*.
• Removing quotes may allow a broader search: (((( literatura de a islam. ) or ( literatura del _ islam. ))) or ( literatura es el imam. ))*.