Got it. We're making some improvements to the way that we do tree based searching that might mitigate some of the issues you're seeing. Since that's something we're actively working on, I'd love any specific searches that feel wrong, so feel free to send them along.
One issue that complicates a lot of tree searches is that once a first name and last name match, the cumulative effect of matching family member names sometimes bring up results that don't match well on vitals (especially in large households with common names). We probably need to set some limits or tweak some weightings there.