Maybe https://sps.bio might help with that, in case you want to do keyword search. It is my latest side project, and I am e.g. using it to monitor for "discovery", and aggressively filtering out other terms.
Discussion
I think I was just having an issue with Amethyst last night. It seems to be searching much more successfully now. I will check that out though.
This probably helped: https://iris.to/post/note1mmttj4gf0f5vm2jyzna42fe95fwe4tsmql0sngvcyh2r0xcmkd4svmphwe