Perhaps you should try some spelling variations:
"sobre politicas publico." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publica.", "sobre politicas publicaso.", "sobre politicas publicado.", "sobre politica publicao.", "sobre politica publico."
"elite politica publicas." » "elite politicas publicas.", "elite politica publica.", "elite politica publicaciones.", "elites politicas publicas.", "etica politica publicas.", "entre politica publicas."
"serie politicas public." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie policiaca 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 politicas publico.") OR ("elite politica publicas."))) OR ("serie politicas public."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"sobre politicas publico.\") OR (\"elite politica publicas.\"))) OR (\"serie politicas public.\"))*".
• Removing quotes may allow a broader search: (((( sobre politicas publico. ) OR ( elite politica publicas. ))) OR ( serie politicas public. ))*.