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