Perhaps you should try some spelling variations:
"serie politicos republica." » "serie politico republicano.", "serie criticos republica.", "serie politicas republicanas.", "serie politicas republica.", "series politicas republica.", "serie politica republica.", "serie politicass republica.", "series politicals republica."
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicaciones."
"serie politico publico." » "serie politica publica.", "serie politico republicano.", "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: (((("serie politico publico.") OR ("serie politicos republica."))) or ("sobre politica publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politico publico.") OR ("serie politicos republica."))) OR ("sobre politica publicas.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"serie politico publico.\") OR (\"serie politicos republica.\"))) or (\"sobre politica publicas.\"))".
• Removing quotes may allow a broader search: (((( serie politico publico. ) OR ( serie politicos republica. ))) or ( sobre politica publicas. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie politico publico.") OR ("serie politicos republica."))) or ("sobre politica publicas."))*.