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

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