Perhaps you should try some spelling variations:
"specialist periodical vendors" » "specialized periodicals vendors", "specialist medical vendors", "specialist neurological vendors", "specialist periodical error", "specialist periodical record", "socialist periodical vendors", "special periodical vendors", "specialist speciesical vendors"
"specialist periodical returns" » "specialized periodicals returns", "specialist medical returns", "specialist neurological returns", "specialist periodical sets", "socialist periodical returns", "special periodical returns", "specialist speciesical returns"
"socialism periodicals returns" » "alcoholism periodicals returns", "society periodicals returns", "socialism political returns", "socialism periodical structures", "socialism periodicals regularly", "socialism periodicals internet"
"specialist period returns" » "socialist period returns", "special period returns", "specialist species returns"

Try widening your search to All Fields.

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 vendors") OR ((((("specialist periodical returns") OR ("specialist period returns"))) OR ("socialism periodicals returns")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"specialist periodical vendors\") or (((((\"specialist periodical returns\") OR (\"specialist period returns\"))) or (\"socialism periodicals returns\"))))".
• Removing quotes may allow a broader search: (( specialist periodical vendors ) or ((((( specialist periodical returns ) OR ( specialist period returns ))) or ( socialism periodicals returns )))).
• Adding a wildcard symbol may retrieve word variants: (("specialist periodical vendors") or ((((("specialist periodical returns") OR ("specialist period returns"))) or ("socialism periodicals returns"))))*.