It's a pleasure to have you here, @Nancyy.

QuickBooks Online makes finding transactions quick and easy with the search function. We can utilize the Magnifying glass to search transactions with a certain condition. 

To proceed, here's what you need do to: 

1. Click the Magnifying Glass.
2. Enter the date, amount, or transaction number you’re looking for, then choose the desired transaction.
3. If the transaction does not appear on the results list, click Advanced Search.
4. Adjust the filters to find the type of data you want. For example, utilize the following filters to locate all transactions from the past 30 days with a value of $100.
   1. Change Reference no. to Last Modified Date.
   2. Alter Today to Past 30 Days.
   3. Click Search. This should give you a list of transactions that meet your filter criteria.
   4. Narrow the list by changing Last Modified Date to Amount. Choose Equals from the second ▼ drop-down menu, then type 100.
   5. Select Add Filter.

For additional information, you can also review this link: How to search for transactions in QuickBooks Online.

I'm also sharing this article to guide you locate transactions in your account history so you can review or edit them: Find, review, and edit transactions in the account history in QuickBooks Online.

Fill me in if you have further concern with the search feature in QuickBooks. I'll be around to help you always. Stay safe!