Perhaps you should try some spelling variations:
"sobre politicas publica." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publica.", "sobre politicas publicasa.", "sobre politicas publicada.", "sobre politica publicaa."
"elites politicas publica." » "elites politicas publicas.", "elites politicas publicad.", "elites politica publica.", "limites politicos publica.", "las politicas publica.", "ideas politicas publica.", "elites politicas publicasa.", "elites politicas publicada.", "elites politica publicaa."
"serie politicas public." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie policiaca 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: (((("sobre politicas publica.") or ("elites politicas publica."))) or ("serie politicas public."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politicas publica.") OR ("elites politicas publica."))) OR ("serie politicas public.")).
• Removing quotes may allow a broader search: (((( sobre politicas publica. ) or ( elites politicas publica. ))) or ( serie politicas public. )).
• Adding a wildcard symbol may retrieve word variants: (((("sobre politicas publica.") or ("elites politicas publica."))) or ("serie politicas public."))*.