cannot search for bug trackers

https://bugs.launchpad.net/bugs/bugtrackers currently lists 1071 bug trackers alphabetically. It shows 75 trackers per page and there is no search functionality. If the Launchpad name doesn't coincide with your guesses, it's impossible to locate an existing remote bug tracker. Even if you know what you are looking for, scrolling through the list with "first", "next", "previous", and "last" until you find the page with the correct 75 trackers is frustrating at best.

Even then, I was unable to find the Emacs bug tracker on the list although I am familiar with its many different URLs and ought to be able to guess where in the list to look. Is it not listed? Where should I look for it? I can find it at https://bugs.launchpad.net/bugs/bugtrackers/gnu-debbugs but not in the list of trackers (neither under "debbugs", "emacsbugs", "gnu-debbugs", nor "auto-debbugs").