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

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