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

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 policiaca public.") OR ("serie politica publica."))) OR ("serie politica publicas."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"serie policiaca public.\") OR (\"serie politica publica.\"))) or (\"serie politica publicas.\"))~".
• Removing quotes may allow a broader search: (((( serie policiaca public. ) OR ( serie politica publica. ))) or ( serie politica publicas. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("serie policiaca public.") OR ("serie politica publica."))) or ("serie politica publicas."))*.