Perhaps you should try some spelling variations:
specialist periodical » specialized periodicals, specialist medical, specialist neurological
socialism periodicals » alcoholism periodicals, society periodicals, socialism political
specialist seminar » special seminar, specialist settings, specialist medical
seminar records » similar records, sonar records

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