Perhaps you should try some spelling variations:
"iteratura latina el islam." » "literatura latina el islam.", "literatura nativa el islam.", "literature latin el islam.", "iteratura latina en islam."
"literatura en de isaac." » "literatura de de isaac.", "literatura espana de isaac."
"literatura le una idea." » "literatura ele una idea.", "literatura de una idea.", "literatura e una idea.", "literatura le la idea.", "literatura vale una idea."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("literatura en de isaac.") or ((("iteratura latina el islam.") or ("literatura le una idea."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura en de isaac.") OR ((("iteratura latina el islam.") OR ("literatura le una idea.")))).
• Removing quotes may allow a broader search: (( literatura en de isaac. ) or ((( iteratura latina el islam. ) or ( literatura le una idea. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura en de isaac.") or ((("iteratura latina el islam.") or ("literatura le una idea."))))*.