Perhaps you should try some spelling variations:
"specialist speciesical vendors" » "specialist species vendors"
"specialist periodical vendors" » "specialized periodicals vendors", "socialism periodicals vendors", "specialist medical vendors", "specialist periodical error", "specialist periodical record", "socialist periodical vendors", "special periodical vendors", "specialist speciesical vendors"
"specialist period returns" » "socialist period returns", "special period returns", "specialist species returns", "specialist periodical 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 speciesical vendors"))) OR ("specialist period returns")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"specialist periodical vendors\") OR (\"specialist speciesical vendors\"))) or (\"specialist period returns\"))".
• Removing quotes may allow a broader search: (((( specialist periodical vendors ) OR ( specialist speciesical vendors ))) or ( specialist period returns )).
• Adding a wildcard symbol may retrieve word variants: (((("specialist periodical vendors") OR ("specialist speciesical vendors"))) or ("specialist period returns"))*.