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."
"ser criticos republica." » "sus criticos republica.", "de criticos republica.", "der criticism republica.", "ser criticos publica."

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"serie politica publicas.\") OR (\"sobre politica publicas.\"))) OR (\"ser criticos republica.\"))~".
• Removing quotes may allow a broader search: (((( serie politica publicas. ) OR ( sobre politica publicas. ))) OR ( ser criticos republica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("serie politica publicas.") OR ("sobre politica publicas."))) OR ("ser criticos republica."))*.