Perhaps you should try some spelling variations:
"psychologique" » "psychologische", "psychological"
"psychologists" » "psychological"
"psychologicals" » "psychological", "psychologically", "psychologica"
"psychologie" » "psychological"

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: (("psychologique" OR ("psychologists" OR "psychologicals")) OR "psychologie").
• Removing quotes may allow a broader search: (( psychologique or ( psychologists or psychologicals )) or psychologie ).
• Adding a wildcard symbol may retrieve word variants: (("psychologique" or ("psychologists" or "psychologicals")) or "psychologie")*.