There might be a browser issue, kimcheasley.

Clearing the cache regularly can boost the browser's performance. Let's try some troubleshooting steps. Access your QuickBooks Online account using a private window. This will not store cache.

Then, try to search for the supplier's name. If you're able to do it, go back to your regular browser and clear the cache. You can also try using a different browser to see if you're getting the same result.

If the error persists, I recommend contacting our QuickBooks support. Here's how:

1. On your QuickBooks account, click the Help icon.
2. Click Contact us.
3. Enter supplier's name can't be search, click Let's talk.
4. Select Start an email.

You can check out this keyboard shortcuts for QBO: https://community.intuit.com/articles/1777470.

Shoot a comment if you have other concerns about QBO performance.