Finding vendors who've selected ALL of the specializations for any of their language combinations and services?

Vendors are responsible for entering their own specializations in their XTRF profile when they apply to work with us. Unfortunately, this has led to confusing and incorrect information in our system because many vendors have selected ALL of the specializations for their language combinations and services. Now we're trying to identify exactly which of our vendors have done this so we can clean up their profiles.

We created a special view in the Vendors section of XTRF and specified that the Specialization should be "is all of..." and then checked ALL of the available specializations. Our view yielded 78 Active vendors. However, when we started spot-checking the profiles, we noticed that some of them only include several specializations across all their language combinations and services, NOT the whole list of all the specializations we selected in the view.

How can we find the vendors in our system who have selected ALL of the specializations for any of their language combinations and services?