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