Perhaps you should try some spelling variations:
"societe oeconomique de france" » "socio economique de france", "societe economique de france", "societe economique des france", "societe economique du france"
"schule astronomie de france" » "schule astronomie und france"

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: (("societe oeconomique de france") OR ("schule astronomie de france")).
• Removing quotes may allow a broader search: (( societe oeconomique de france ) or ( schule astronomie de france )).
• Adding a wildcard symbol may retrieve word variants: (("societe oeconomique de france") or ("schule astronomie de france"))*.