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