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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("elites politicas luis.") or ("limites politicos luis."))) or ("serie policiaca publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("elites politicas luis.") OR ("limites politicos luis."))) OR ("serie policiaca publica."))*.
• Removing quotes may allow a broader search: (((( elites politicas luis. ) or ( limites politicos luis. ))) or ( serie policiaca publica. ))*.