Perhaps you should try some spelling variations:
"literature frances de isla." » "literature francesc de isla.", "literature france de isla.", "literatura francesa de isla.", "literature francesa de isla.", "literature frances y isla.", "literature frances en isla.", "literature frances de isaac."
"literatura de e isaac." » "literatura de de isaac.", "literatura de en isaac.", "literatura de _ isaac.", "literatura de el isaac.", "literatura de fe isaac."
"literatura _ de ilam." » "literatura _ de islam.", "literatura _ de chilam."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura de e isaac.") OR ("literatura _ de ilam."))) OR ("literature frances de isla."))~.
• Removing quotes may allow a broader search: (((( literatura de e isaac. ) or ( literatura _ de ilam. ))) or ( literature frances de isla. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura de e isaac.") or ("literatura _ de ilam."))) or ("literature frances de isla."))*.