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