Perhaps you should try some spelling variations:
"serie politicas publica." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie policiaca publica."
"limites politicos luis." » "lideres politicos luis.", "debates politicos luis.", "limites juridicos luis.", "limites politicos las.", "limites politica luis.", "limites politicos los."
"elites politico luis." » "elite politico luis.", "elites politicas luis.", "elite politica luis.", "elites politico la."

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: (((("elites politico luis.") OR ("limites politicos luis."))) OR ("serie politicas publica."))~.
• Removing quotes may allow a broader search: (((( elites politico luis. ) or ( limites politicos luis. ))) or ( serie politicas publica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("elites politico luis.") or ("limites politicos luis."))) or ("serie politicas publica."))*.