SEARCH MELTDOWN

I just discovered that the dated entries in my NATURALIST’S JOURNAL will not show up when I search for them. I’ll need to delete the day of the week, which I’ve been so carefully looking up, and type the dates as January20,1979 and January20,2007 (no spaces) in order to have the January20 entries and only the January20 entries come up when I search for January20. How else can I do the dates? Jan20,2007? No I think I should stick with the full month name. Once again, I’m exasperated, but at least I caught this glitch early enough that I can fix it without having to edit 28 years worth of journal entries ….