Perhaps you should try some spelling variations:
"serie policiaca publicas." » "serie politica publicas.", "serie politicas publicas.", "serie politicas publicad."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."
"delito politico publica." » "delito politico publico.", "delito politica publicas.", "delito politicos republica.", "delitos politicos publica.", "mito politico publica.", "etico politico publica."

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