Perhaps you should try some spelling variations:
"sobre politica publica." » "sobre politicas publicas.", "sobre politica publicasa.", "sobre politico publicoa.", "sobre politicas publicasa.", "sobre politicas publica."
"serie politicas public." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publicas.", "serie policiaca public.", "serie policiacas public.", "elite politicas public."
"serie politica public." » "serie politica publicas.", "serie politico publico.", "serie politicas publicas.", "serie policiaca public.", "elite politica public."

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 politicas public.") or ("serie politica public."))) or ("sobre politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politicas public.") OR ("serie politica public."))) OR ("sobre politica publica.")).
• Removing quotes may allow a broader search: (((( serie politicas public. ) or ( serie politica public. ))) or ( sobre politica publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie politicas public.") or ("serie politica public."))) or ("sobre politica publica."))*.