I thought DaasYochid was one name. Like Bentzion. If someone’s name is Bentzion, he can’t say that his name is in davening just because the words “ben” and “tzion” are in davening.
If Daas is your first name, and Yochid is your last name, that’s a different story. But then there should be a space in between.
btw, didn’t there used to be a space, or was it always like this?