Perhaps you should try some spelling variations:
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "sobre politica publica."
"serie politico publico." » "serie politica publicas.", "serie politico republicano.", "serie politicos republica.", "serie politicas publico.", "series political publico.", "series politicas publico."
"especies exoticas public." » "especies etica public.", "especial exoticas public."

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: (("especies exoticas public.") OR ((("serie politica publica.") OR ("serie politico publico."))))~.
• Removing quotes may allow a broader search: (( especies exoticas public. ) or ((( serie politica publica. ) or ( serie politico publico. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("especies exoticas public.") or ((("serie politica publica.") or ("serie politico publico."))))*.