Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicas."
"serie politica public." » "serie politica publica.", "serie politica publicas.", "serie politico publico.", "serie politicas public.", "elite politica public."
"sobre politica public." » "sobre politica publica.", "sobre politica publicas.", "sobre politico publico.", "sobre politicas 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: (("serie policiaca publica.") OR ((("serie politica public.") OR ("sobre politica public."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie policiaca publica.\") or (((\"serie politica public.\") OR (\"sobre politica public.\"))))~".
• Removing quotes may allow a broader search: (( serie policiaca publica. ) or ((( serie politica public. ) OR ( sobre politica public. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("serie policiaca publica.") or ((("serie politica public.") OR ("sobre politica public."))))*.