I thought that since it's a more capable machine, that I'd turn on file indexing for our main file server, the one users delete/lose files from

So here's where I'm confused.
I have a file in the backup that has changed several times in the last week.
For example:
Modified 3/3/2021 on restore point 3/3/2021
Modified 3/5/2021 on restore point 3/7/2021
Modified 3/8/2021 on restore point 3/8/2021
in Enterprise manager, if I do a plain search on the file, I see one copy on the 3/8 restore point.
OK. So then I go into the search filter and give it a date range of 3/3 to 3/8
I still only see the file in the 3/8 restore point. I would expect to see all 3 versions.
Now, if I change the date range so it's 3/3 to 3/7, I then see the 3/7 restore point, but not the 3/3.
Am I missing another setting? I would think that I could do a search to find every version of the file that's available over a date range.
Thanks!