Perhaps you should try some spelling variations:
"literatura o de islam." » "literatura e de islam.", "literatura a de islam.", "literatura con de islam.", "literatura o del islam.", "literatura o e islam.", "literatura o de ilam.", "literatura o de isaacm."
"literatura y de islam." » "literatura y del islam.", "literatura y e islam.", "literatura y de ilam.", "literatura y de isaacm."
"literatura _ de isla." » "literatura _ de isaac."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura o de islam.") OR ("literatura _ de isla."))) OR ("literatura y de islam."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura o de islam.\") OR (\"literatura _ de isla.\"))) OR (\"literatura y de islam.\"))".
• Removing quotes may allow a broader search: (((( literatura o de islam. ) OR ( literatura _ de isla. ))) OR ( literatura y de islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura o de islam.") OR ("literatura _ de isla."))) OR ("literatura y de islam."))*.