Perhaps you should try some spelling variations:
"literatura arabo de isla." » "literatura arabe de isla.", "literature arab de isla.", "literatura alvaro de isla.", "literatura arado de isla.", "literatura arabes de isla.", "literatura arabo de isaac."
"literatura _ de ilam." » "literatura _ de islam.", "literatura _ de chilam."
"literatura y de ilam." » "literatura y de islam.", "literatura y 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 ilam.") OR ("literatura y de ilam."))) OR ("literatura arabo de isla."))~.
• Removing quotes may allow a broader search: (((( literatura _ de ilam. ) or ( literatura y de ilam. ))) or ( literatura arabo de isla. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura _ de ilam.") or ("literatura y de ilam."))) or ("literatura arabo de isla."))*.