Perhaps you should try some spelling variations:
medical sociological » medical psychological, medical biological, medical radiological
medico psychological » mexico psychological, medical psychological, media psychological
medico sociological » medico biological, micro sociological, macro sociological

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: ((medical sociological) OR (((medico sociological) OR (medico psychological)))) association.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((medical sociological) or (((medico sociological) OR (medico psychological)))) association".
• Adding a wildcard symbol may retrieve word variants: ((medical sociological) or (((medico sociological) OR (medico psychological)))) association*.