Perhaps you should try some spelling variations:
"psychologist" » "psychologie", "psychological", "psychology"
"psychologists" » "psychologies", "psychologicals", "psychologys", "psychological"
"psychologys" » "psychology", "psychologie"
"psychologicals" » "psychological", "psychologiques"
"psychologies" » "psychologie", "psychologiques", "psychological"

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

• Performing a fuzzy search may retrieve terms with similar spellings: ("psychologist" or ((("psychologists" OR "psychologys") or "psychologicals") or "psychologies"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ("psychologist" OR ((("psychologists" OR "psychologys") OR "psychologicals") OR "psychologies")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(\"psychologist\" or (((\"psychologists\" OR \"psychologys\") or \"psychologicals\") or \"psychologies\"))".
• Removing quotes may allow a broader search: ( psychologist or ((( psychologists OR psychologys ) or psychologicals ) or psychologies )).
• Adding a wildcard symbol may retrieve word variants: ("psychologist" or ((("psychologists" OR "psychologys") or "psychologicals") or "psychologies"))*.