Perhaps you should try some spelling variations:
"sobre politica public." » "sobre politica publicas.", "sobre politico publico.", "sobre politicas publicad.", "sobre politicas public."
"hombre politica publica." » "hombre politica publicasa.", "hombre politico publicoa.", "hombre politicas publicada.", "hombre politico publica.", "sobre politicas publica."
"serie politicas publicas." » "serie policiaca publicas.", "serie politicas publico."

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 ("hombre politica publica."))) OR ("serie politicas publicas."))~.
• Removing quotes may allow a broader search: (((( sobre politica public. ) or ( hombre politica publica. ))) or ( serie politicas publicas. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica public.") or ("hombre politica publica."))) or ("serie politicas publicas."))*.