AND(
{Date} >DATE(1999,01, 01),
{Cust #} > " CZZZZ",
{Prefixed Doc #} > "I 4008",
Trim({Salesperson}) = "CLO"
)

The AND function takes a list seperated by commas.
The example above uses Trim on the Salesperson field because the field may be 6 cahracters.

At this time you are not able to insert the Customer Name from A/R into the View.