Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicaciones."
"serie politico publico." » "serie politica publica.", "serie politico republicano.", "serie politicos republica.", "serie politica publico.", "serie politicas publico.", "series political publico."
"serie criticos republica." » "serie clasicos republica.", "serie cronicas republica.", "sopi 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 politico publico.") or ("serie criticos republica."))) or ("sobre politica publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politico publico.") OR ("serie criticos republica."))) OR ("sobre politica publicas.")).
• Removing quotes may allow a broader search: (((( serie politico publico. ) or ( serie criticos republica. ))) or ( sobre politica publicas. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie politico publico.") or ("serie criticos republica."))) or ("sobre politica publicas."))*.