Perhaps you should try some spelling variations:
"serie policiacas public." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie politicas public.", "series politicas public.", "series political public."
"serie policiaca publica." » "serie politica publica.", "serie politicas publicas.", "serie politicas publicad."
"serie politica publicas." » "serie politicas publicas.", "serie politica publica.", "serie politica publicaciones.", "sobre politica publicas.", "elite politica publicas."

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 ("serie politica publicas."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie policiacas public.") OR ((("serie policiaca publica.") OR ("serie politica publicas.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie policiacas public.\") or (((\"serie policiaca publica.\") OR (\"serie politica publicas.\"))))".
• Removing quotes may allow a broader search: (( serie policiacas public. ) or ((( serie policiaca publica. ) OR ( serie politica publicas. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie policiacas public.") or ((("serie policiaca publica.") OR ("serie politica publicas."))))*.