Perhaps you should try some spelling variations:
"literatura mayas en islam." » "literatura maya en islam.", "literatura mas en islam.", "literatura akal en islam.", "literatura mayas de islam.", "literatura mayas el islam.", "literatura mayas e islam.", "literatura mayas en ilam."
"literatura de un isaac." » "literatura de en isaac.", "literatura de de isaac.", "literatura de _ isaac."
"literatura as un islam." » "literatura as el islam.", "literatura as e islam.", "literatura as al islam."

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 un isaac.") OR ("literatura as un islam."))) OR ("literatura mayas en islam."))~.
• Removing quotes may allow a broader search: (((( literatura de un isaac. ) or ( literatura as un islam. ))) or ( literatura mayas en islam. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura de un isaac.") or ("literatura as un islam."))) or ("literatura mayas en islam."))*.