Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publicaciones.", "sobre politicas publicass.", "sobre politico publicoas.", "sobre politicas publicasas.", "sobre politicas publicadas."
"serie politica publica." » "serie politicas publicas.", "serie politico publicoa.", "serie politicas publicasa.", "serie politicas publicada.", "serie politicas publica.", "serie policiaca publica.", "elite politica publica."
"sobre politica public." » "sobre politico publico.", "sobre politicas publicas.", "sobre politicas publicad.", "sobre politicas public."

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

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