Perhaps you should try some spelling variations:
"literatura la de isaac." » "literatura de de isaac.", "literatura en de isaac.", "literatura e de isaac.", "literatura la fe isaac.", "literatura ly de isaac.", "literatura l_ de isaac.", "literatura lo de isaac."
"literatura a de islam." » "literatura al de islam.", "literatura e de islam.", "literatura de de islam.", "literatura a de isla.", "literatura a e islam.", "literatura a de ilam.", "literatura y de islam.", "literatura _ de islam.", "literatura o de islam."
"literatura y del islam." » "literatura y el 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 y del islam.") or ((("literatura a de islam.") or ("literatura la de isaac."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura y del islam.") OR ((("literatura a de islam.") OR ("literatura la de isaac."))))*.
• Removing quotes may allow a broader search: (( literatura y del islam. ) or ((( literatura a de islam. ) or ( literatura la de isaac. ))))*.