Searching in Photos is TERRIBLE

My iPhone X has been "updating people" since 11/3 and there's only five people in the Album! Photos on my Mac OS 10.13.1 MacBookPro has all of the iPhoto people imported from my old album. I've imported that album to iOS 11.1.2 Photos (via iTunes 12.7.1.14) as well, but I can't search for people by name. I've spent hours and hours of time classifying people in iPhoto and Photos only to have all of that work completely destroyed by this new algorithm that doesn't work, and I still can't search!

Photos has been a mess for searching since it was released in my opinion. The iPhoto metadata was never imported in a meaningful way. For organizing a large photo library to be searched, Photos still can't do that in 2017. I can't find a picture of a person or a dog on my phone! Is there a third-party Photos app that actually works?