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

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("serie policiaca publica.") or ("entre politica publico."))) or ("sobre politicas publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie policiaca publica.") OR ("entre politica publico."))) OR ("sobre politicas publicas.")).
• Removing quotes may allow a broader search: (((( serie policiaca publica. ) or ( entre politica publico. ))) or ( sobre politicas publicas. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie policiaca publica.") or ("entre politica publico."))) or ("sobre politicas publicas."))*.