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