Bridge 10.0.2. Just did a clean install onto a new mac with Catalina. Imported my Keywords from the old computer, all photos on an external hard drive, Gave Bridge full disk access in my preference securities. When I try to do a search in Bridge for a keyword or even specify photo name with "include subfolders" and "Include non-indexed files" it comes up with zero results. Under metadata the keywords are shown attached to the photos but the search is not seeing them. Any ideas?
Bridge has to build indices of each folder for search to work. Try opening the folder your file is in, let it list, and then see if search works.