Perhaps you should try some spelling variations:
"sociologist" » "sociological"
"sociologists" » "sociologicals", "sociological"
"sociologie" » "sociologia", "sociological"
"radiologists" » "radiological"

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: ("sociologist" OR (("sociologie" OR (("sociologists" OR "biologists") OR "radiologists")) OR "sociology")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(\"sociologist\" or ((\"sociologie\" or ((\"sociologists\" OR \"biologists\") or \"radiologists\")) or \"sociology\"))".
• Removing quotes may allow a broader search: ( sociologist or (( sociologie or (( sociologists OR biologists ) or radiologists )) or sociology )).
• Adding a wildcard symbol may retrieve word variants: ("sociologist" or (("sociologie" or (("sociologists" OR "biologists") or "radiologists")) or "sociology"))*.