Perhaps you should try some spelling variations:
"combate politico publico." » "debate politico publico.", "cambio politico publico.", "combate politica publica.", "combate politica publicas.", "combate politico republicano."
"sobre politica public." » "sobre politica publica.", "sobre politica publicas.", "sobre politicas publicad.", "sobre politicas public."
"serie politicas publicas." » "serie policiaca publicas.", "serie politicas 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: (((("sobre politica public.") OR ("combate politico publico."))) OR ("serie politicas publicas."))~.
• Removing quotes may allow a broader search: (((( sobre politica public. ) or ( combate politico publico. ))) or ( serie politicas publicas. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica public.") or ("combate politico publico."))) or ("serie politicas publicas."))*.