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

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: (((("etica politica publico.") or ("mexico politics publico."))) or ("serie policiaca publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("etica politica publico.") OR ("mexico politics publico."))) OR ("serie policiaca publica.")).
• Removing quotes may allow a broader search: (((( etica politica publico. ) or ( mexico politics publico. ))) or ( serie policiaca publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("etica politica publico.") or ("mexico politics publico."))) or ("serie policiaca publica."))*.