Anyone else experience Tire Rack search glitches?

[67XR7]

I'm doing some homework for tire setup on my car and found that when I do a search for tires, I'm not truly getting all the results for my combo.

Anyone else run into this?

example: I have been looking at a 275/30/19 front and a 295 or 305/30/19 rear and I ran a search, no Pirelli tires showed up. looked at the P-zero tire and all 3 of those are listed.

I'm just trying to get an idea of what and how many options are offered in certain sizes, before I select my tires. I guess I'm going to need to do more than just rely on tire rack search engine.