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