I replicated this on my QuickBooks Desktop, homeboy4.

When creating the invoice, in which box/field you've included the phrase HITS 2018? If you used the Description field, the amount won't reflect on the Find window if that line has no amount as well.

Moving forward, we can use the Memo field if the Hits 2018 is just a note. That way, the total invoice amount will reflect on the Amount column when searching it using Find.

For now, you'll want to search the invoices by transaction type, date, and posting status.

In addition, here's an article to see the available reports in QuickBooks Desktop. This will explain to you what their functions or uses are.

I'll be right here if you have more questions. Please comment to this thread anytime.