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