Perhaps you should try some spelling variations:
"serie policiaca publico." » "serie politica publica.", "serie politico publico.", "serie oficial publico."
"etica politica publicas." » "etica politicas publicas.", "etica politica publica.", "etica politica publicaciones.", "publica politica publicas."
"sobre politica publico." » "sobre politica publica.", "sobre politico publico.", "sobre politicas publicas.", "sobre 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 publico.") or ("sobre politica publico."))) or ("etica politica publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie policiaca publico.") OR ("sobre politica publico."))) OR ("etica politica publicas.")).
• Removing quotes may allow a broader search: (((( serie policiaca publico. ) or ( sobre politica publico. ))) or ( etica politica publicas. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie policiaca publico.") or ("sobre politica publico."))) or ("etica politica publicas."))*.