Is it my imagination, or is search pretty bad?
I searched for "Roland D-05", the precise name of a new synthesizer. (This one: https://www.gearogs.com/gear/62784-Roland-D-05)
It said 100 search results. The item in question was number 21 in the list. The first hardware item in the search result list is "Allen & Heath - IRD-OUT".
There are planned improvements for the site as it grows. Presumably making the search function usable is one of them.
Meanwhile, I've found Google to be preferable. Just enter the model you're looking for followed by "site:gearogs.com" and if it's in the database it'll come right up.