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