Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politicas publicas.", "serie politicas publicad.", "serie politico publico."
"etico politica publicas." » "etico politicas publicas.", "etico politica publicaciones.", "etico politicas publicass.", "etico politico publicas.", "mexico politica publicas."
"etica politica publica." » "etica politicas publicas.", "publica politica publica."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("serie policiaca publica.") or ((("etica politica publica.") or ("etico politica publicas."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie policiaca publica.") OR ((("etica politica publica.") OR ("etico politica publicas.")))).
• Removing quotes may allow a broader search: (( serie policiaca publica. ) or ((( etica politica publica. ) or ( etico politica publicas. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie policiaca publica.") or ((("etica politica publica.") or ("etico politica publicas."))))*.