Thanks, AlexV. I think you heard my cry loud and clear. Yes, HITS 2018 was in the description field. I get it that if I know in advance that I'm going to want to search for something, there's a better way to do it -- including using the notes field. But occasionally, as in this case, I didn't know in advance. This particular customer might, in the future, ask for all invoices in which "yellow" was mentioned. This doesn't happen a lot and when it does it's not hundreds of invoices. In the example, there were only 16, and I just called up each invoice one by one and copied the invoice amount. 

I still wonder, though, if perhaps by using the Reports area, that I can search for something in the Description area and build a report with invoice amount. But if that can't be done, I'll live.

Thanks to everyone for your help.