Perhaps you should try some spelling variations:
"serie politica publicas." » "serie politicas publicas.", "serie politica publica.", "serie politica publicaciones.", "serie policiaca publicas.", "elite politica publicas."
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicaciones."
"sus criticos publica." » "sus criticos republica."

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 publicas.") or ("sobre politica publicas."))) or ("sus criticos publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politica publicas.") OR ("sobre politica publicas."))) OR ("sus criticos publica."))*.
• Removing quotes may allow a broader search: (((( serie politica publicas. ) or ( sobre politica publicas. ))) or ( sus criticos publica. ))*.