Perhaps you should try some spelling variations:
"sobre politicas publica." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publicas.", "sobre politica publica.", "serie politicas publica."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "sobre politica publica."
"especies exoticas public." » "especies etica public.", "especial exoticas public."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("especies exoticas public.") or ((("sobre politicas publica.") or ("serie politica publica."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("especies exoticas public.") OR ((("sobre politicas publica.") OR ("serie politica publica."))))*.
• Removing quotes may allow a broader search: (( especies exoticas public. ) or ((( sobre politicas publica. ) or ( serie politica publica. ))))*.