Find a Mass: Special Services anomaly

At the Archdiocese of Milwaukee web site, there is a page with a Find a Mass search feature. It includes a search for "Special Services" which says

To find specific masses or comments (e.g. Spanish Mass, Youth Mass), enter the search word(s) in the box below:

When I enter "Spanish Mass" or "Youth Mass" it produces a list of parishes. The links to those parishes' pages include their respective Mass schedules which show the Spanish Mass or Youth Mass.

You might think that "Latin Mass" or "Tridentine Mass" would work the same way. They don't; either search produces no result. Entering "Latin" or "Tridentine" produces a page which says

Mary Help of Christians
1204 S. 61st St.
West Allis
Tridentine Latin Community at 11:30 am Sundays

It's because it says "Tridentine Latin Community" that the search results work, and don't work, the way they do. And unlike the listings for other parishes with "Special Services," the site's Mass schedule page for Mary Help of Christians does not list the the Latin Tridentine Mass.