Hi, ShineRetro. 

As mentioned by my colleague @ReymondO that the Advanced Search feature in QuickBooks Online can only flashback transactions that are within two years from today's date.

Know that we are constantly improving our product features to meet your needs. Everything we have developed within the program derives from listening to our customers.

I'm happy to submit feedback for you to our product engineers for a possible change in future updates.

I'd still suggest visiting the Firm of the Future website to stay updated with new features and options. It also contains product news about any changes.

If you have any follow-ups or other concerns, please leave a comment below. I'm here to help. Have a great day.