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

You may be able to get more results by adjusting your search query.

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