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