Perhaps you should try some spelling variations:
"sciences agronomiques de france" » "sciences economiques de france", "science economique de france", "sciences agronomique de france", "sciences astronomiques de france", "sciences agronomiques en france"
"melanges agronomiques de france" » "voyages agronomiques de france", "melanges agronomique de france", "melanges astronomiques de france", "melanges agronomiques en france"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sciences agronomiques de france\") OR (\"melanges agronomiques de france\"))".
• Removing quotes may allow a broader search: (( sciences agronomiques de france ) OR ( melanges agronomiques de france )).
• Adding a wildcard symbol may retrieve word variants: (("sciences agronomiques de france") OR ("melanges agronomiques de france"))*.