Perhaps you should try some spelling variations:
"serie policiacas public." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie politicas public.", "serie politica public.", "series politicas public."
"serie policiaca publica." » "serie politica publica.", "serie politica publicas.", "serie politicas publicas."
"ideas politicas publica." » "ideas politicas publicas.", "ideas politicas publicad.", "ideas politica publica.", "las politicas publica.", "ideologias politicas publica."

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