Perhaps you should try some spelling variations:
"sobre politicos republica." » "sobre politico republicano.", "sobre criticos republica.", "sobre politicas republicanas.", "sobre politicas republica.", "sobre politica republica.", "socio politicos republica."
"serie policiaca public." » "serie politica publicas.", "serie politico publico."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "sobre politica publica.", "elite politica publica."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie policiaca public.") OR ("sobre politicos republica."))) OR ("serie politica publica."))~.
• Removing quotes may allow a broader search: (((( serie policiaca public. ) or ( sobre politicos republica. ))) or ( serie politica publica. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("serie policiaca public.") or ("sobre politicos republica."))) or ("serie politica publica."))*.