Perhaps you should try some spelling variations:
"economiques politiques" » "historiques politiques"
"economique politique" » "oeconomique politique", "economico politique", "d'economie politique"
"l'economie politique" » "d'economie politique"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("economique politique") OR ((("l'economie politique") OR ("economiques politiques")))).
• Removing quotes may allow a broader search: (( economique politique ) or ((( l'economie politique ) or ( economiques politiques )))).
• Adding a wildcard symbol may retrieve word variants: (("economique politique") or ((("l'economie politique") or ("economiques politiques"))))*.