Perhaps you should try some spelling variations:
"serie politico mexicano." » "serie politica mexicana.", "serie politica mexico.", "serie politics mexico.", "serie politicas mexicano.", "series political mexicano.", "series politicas mexicano."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "sobre politica publica."
"serie politicos mexico." » "serie politica mexico.", "serie policy mexico.", "serie politicas mexico.", "series politicas mexico.", "ser politicos mexico.", "serie politicass mexico.", "series politicals mexico.", "series politicass mexico."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("serie politica publica.") or ((("serie politico mexicano.") OR ("serie politicos mexico."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie politica publica.") OR ((("serie politico mexicano.") OR ("serie politicos mexico."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie politica publica.\") or (((\"serie politico mexicano.\") OR (\"serie politicos mexico.\"))))*".
• Removing quotes may allow a broader search: (( serie politica publica. ) or ((( serie politico mexicano. ) OR ( serie politicos mexico. ))))*.