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

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