Perhaps you should try some spelling variations:
specialist periodical » specialized periodicals, specialist neurological
socialism periodicals » alcoholism periodicals, society periodicals, socialism political
specialist medical » special medical, specific medical, specialist seminar
medical reports » medical records, medical record, clinical reports

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: (( ((specialist periodical) OR (socialism periodicals)) reports ) OR ( specialist medical reports )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((specialist periodical) OR (socialism periodicals)) reports ) or ( specialist medical reports ))".
• Adding a wildcard symbol may retrieve word variants: (( ((specialist periodical) OR (socialism periodicals)) reports ) or ( specialist medical reports ))*.