Email SearchFilter on EmailMessageSchema.DisplayFrom

hello,

I'm trying to include the From display name of an email in my search result when performing EWS search.  from the

EmialMessageSchema has a property for DispalyTo and DisplayCC but I don't see DisplayFrom, does any one know why?

and How I will be able to achieve search in email's from DispalyName?  I don't see a property DisplayBB.

thanks

Nebiyu.