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