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

Try widening your search to All Fields.

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