Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politica publica.", "sobre politica publicaciones.", "sobre politicas publicas."
"serie politicas public." » "serie politicas publicad.", "serie politica publica.", "serie politicas pablo.", "serie policiaca public."
"etica politicas publicas." » "etica politicas publicadas.", "etica politica publicaas.", "etica politicas pabloas.", "etica politica publicas.", "etico politicas publicas.", "etico politicos publicas."

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

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