Perhaps you should try some spelling variations:
"literatura espanol datos." » "literatura espanola datos.", "literatura espaanola datos.", "literatura espanolas datos.", "literatura espanol dos.", "literatura espanol anos.", "literatura espanol debates."
"literatura en debate." » "literatura de debate.", "literatura espana debate.", "literatura el debate."
"literatura un debate." » "literatura una debate.", "literatura con debate.", "literatura de debate.", "literatura el debate."

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 en debate.") OR ("literatura un debate."))) OR ("literatura espanol datos."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura en debate.\") OR (\"literatura un debate.\"))) or (\"literatura espanol datos.\"))~".
• Removing quotes may allow a broader search: (((( literatura en debate. ) OR ( literatura un debate. ))) or ( literatura espanol datos. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura en debate.") OR ("literatura un debate."))) or ("literatura espanol datos."))*.