Perhaps you should try some spelling variations:
"entre politica publicas." » "entre politicas publicas.", "entre politica publicaciones.", "entre politicas publicass."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."
"serie politico publico." » "serie politico republicano.", "serie politicos republica.", "serie politicas publicas.", "serie politica publico.", "serie politicas publico.", "series political publico."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("entre politica publicas.") or ("sobre politica publica."))) or ("serie politico publico."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("entre politica publicas.") OR ("sobre politica publica."))) OR ("serie politico publico."))*.
• Removing quotes may allow a broader search: (((( entre politica publicas. ) or ( sobre politica publica. ))) or ( serie politico publico. ))*.