Perhaps you should try some spelling variations:
"french geodetic missions" » "french geodetic mission", "french genetic mission", "french academic missions", "french poetic missions", "french genetics missions"
"free geodetic missions" » "free geodetic mission", "free genetic mission", "free academic missions", "from geodetic missions", "free genetic missions", "edge geodetic missions"

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: "((\"french geodetic missions\") OR (\"free geodetic missions\"))".
• Removing quotes may allow a broader search: (( french geodetic missions ) OR ( free geodetic missions )).
• Adding a wildcard symbol may retrieve word variants: (("french geodetic missions") OR ("free geodetic missions"))*.