With help from Adobe, I solved the JPEG opening in ACR problem. In Bridge, go to TOLLS-.cache->purge command. This reset the images and then openng in Raw works properly.
As to the FInd command, while I was on the phone with Adobe, the search function recognized the Keywords and functioned OK. Why it did not work before, I have no idea.
The intermittency of this problem is very frustrating.
MDIJB