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

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