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

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