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

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