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

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