Perhaps you should try some spelling variations:
"serie policiaca publicas." » "serie politica publicas.", "serie politicas publicas.", "serie politicas publicad."
"elites politica publica." » "elites politicas publicas.", "elites politica publicasa.", "elites politico publicoa.", "elites politicas publicasa.", "elites politicas publica.", "elite politica publica.", "elite politico publica."
"sobre politica public." » "sobre politica publicas.", "sobre politico publico.", "sobre politicas publicas.", "sobre politicas public."

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