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