Perhaps you should try some spelling variations:
"specialist periodical reports" » "specialized periodicals reports", "specialist medical reports", "specialist neurological reports", "specialist periodic report", "specialist periodical record"
"specialist periodical returns" » "specialized periodicals returns", "specialist medical returns", "specialist neurological returns", "specialist period returns"
"specialist periodical sets" » "specialized periodicals sets", "specialist medical sets", "specialist neurological sets", "specialist periodical set"
"socialism periodicals record" » "alcoholism periodicals record", "society periodicals record", "socialism political record", "socialism periodical record", "socialism periodicals before"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((("specialist periodical reports") OR ((("specialist periodical returns") OR ("specialist periodical sets"))))) OR ("socialism periodicals record")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"specialist periodical reports\") or (((\"specialist periodical returns\") OR (\"specialist periodical sets\"))))) or (\"socialism periodicals record\"))".
• Removing quotes may allow a broader search: (((( specialist periodical reports ) or ((( specialist periodical returns ) OR ( specialist periodical sets ))))) or ( socialism periodicals record )).
• Adding a wildcard symbol may retrieve word variants: (((("specialist periodical reports") or ((("specialist periodical returns") OR ("specialist periodical sets"))))) or ("socialism periodicals record"))*.