Perhaps you should try some spelling variations:
"serie policiaca publica." » "serie politica publicas.", "serie politicas publicas.", "serie politicas publicad."
"etico politicos publico." » "etico politico publico.", "etico politicos republica.", "etico politicas publicas.", "etica politica publico.", "mexico politics publico."
"entre politica publica." » "entre politicas publicas.", "sobre 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: (((("entre politica publica.") or ("etico politicos publico."))) or ("serie policiaca publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("entre politica publica.") OR ("etico politicos publico."))) OR ("serie policiaca publica.")).
• Removing quotes may allow a broader search: (((( entre politica publica. ) or ( etico politicos publico. ))) or ( serie policiaca publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("entre politica publica.") or ("etico politicos publico."))) or ("serie policiaca publica."))*.