Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politica publica.", "sobre politica publicaciones.", "sobre politicas publicas."
"elites politicas publicas." » "limites politicos publicas.", "las politicas publicas.", "ideas politicas publicas."
"ser criticos publica." » "ser criticos republica.", "sus criticos publica.", "de criticos publica.", "der criticism 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: "((((\"elites politicas publicas.\") OR (\"sobre politica publicas.\"))) OR (\"ser criticos publica.\"))~".
• Removing quotes may allow a broader search: (((( elites politicas publicas. ) OR ( sobre politica publicas. ))) OR ( ser criticos publica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("elites politicas publicas.") OR ("sobre politica publicas."))) OR ("ser criticos publica."))*.