Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicas."
"limites politicos las." » "lideres politicos las.", "debates politicos las.", "limites juridicos las.", "limites politicos la.", "limites politico la.", "limites politica las."
"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 las."))) or ("serie policiaca publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("elites politicas luis.") OR ("limites politicos las."))) OR ("serie policiaca publica."))*.
• Removing quotes may allow a broader search: (((( elites politicas luis. ) or ( limites politicos las. ))) or ( serie policiaca publica. ))*.