Microsoft query

SELECT * FROM Customers3 WHERE (3cstfirst, cstlast, cstphone) NOT IN   (SELECT cstfirst, cstlast, cstphone FROM Customers1)AND cstfirst, cstlast, cstphone NOT IN   SELECT 2cstfirst, cstlast, cstphone FROM Customers2)Fixed the missing (SELECT * FROM Customers3 WHERE (3cstfirst, cstlast, cstphone) NOT IN   (SELECT cstfirst, cstlast, cstphone FROM Customers1)AND cstfirst, cstlast, cstphone NOT IN   (SELECT 2cstfirst, cstlast, cstphone FROM Customers2)