Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicad."
"elite politicas public." » "elite politicas publicad.", "elite politica publica.", "elite politica publicas.", "elites politicas public.", "elite politica public.", "elite politico public."
"sobre politicas publicas." » "sobre politicas publicadas.", "sobre politica publicaas.", "sobre politica publicasas.", "sobre politica publicas.", "serie politicas publicas.", "sobre 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: (((("elite politicas public.") OR ("serie policiaca publica."))) OR ("sobre politicas publicas."))~.
• Removing quotes may allow a broader search: (((( elite politicas public. ) or ( serie policiaca publica. ))) or ( sobre politicas publicas. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("elite politicas public.") or ("serie policiaca publica."))) or ("sobre politicas publicas."))*.