Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicas."
"elite politico publicad." » "elite politicas publicad.", "elite politica publica.", "elite politica publicas.", "elite politica publicad.", "delito politico publicad.", "elites politicas publicad."
"sobre politicas publica." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publica.", "serie politicas publica."

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: (((("serie policiaca publica.") OR ("elite politico publicad."))) OR ("sobre politicas publica."))~.
• Removing quotes may allow a broader search: (((( serie policiaca publica. ) or ( elite politico publicad. ))) or ( sobre politicas publica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("serie policiaca publica.") or ("elite politico publicad."))) or ("sobre politicas publica."))*.