The search tool is rubbish, try searching by number of seats loads of bigger vehicles don’t show up. The VW Transporters didn’t show up at all when searching by seats there are others that get missed too but do show up if you search by make/model.
Have a feeling its not the search itself that’s the issue but too many cars listed have important details wrong. I noticed previously some 7 seaters were listed as only 5. If that one example us wrong how many others are there?
I miss the old days when you could download a huge pdf covering everything & search for yourself offline.