Command F does not work
In the last few days the Find function has stopped working. When I am in Finder, I type "Command F." I get the window that opens then. I type in the term for which I want to search. The bottom of the window then reports "O items." I know the items exist. For example one such item was a file that I had just finished typing and then misfiled. I knew that the file existed because I had saved it only a few seconds earlier. I have not been able to find anything on my hard drive for about a week now. Why is the Find function failing?
Mac mini, macOS High Sierra (10.13)