I've tried the search function on my own account, and they work fine. Let me help you perform some troubleshooting steps to isolate the issue.
First, you'll need to search for the addresses in a private/incognito browser. This way, we can isolate if this is a browser issue. If you're able to search for the addresses using the private/incognito browser, you'll then need to clear your browser's cache.
You can use these keyboard shortcuts to open a private/incognito browser:
Google Chrome: Ctrl + Shift + N
Internet Explorer: Ctrl + Shift + P
Mozilla Firefox: Ctrl + Shift + P
Safari: Command + Option + N
If you're still unable to search for the addresses, you may need to perform this on another browser.
Also, you can pull up the Customer/Employee/Vendor Contact List report to view all the addresses you need.
Please don't hesitate to let me know if you have any other concerns. I'll be here to help you.
The only way I seem to be able to find a customer by street name is if it is a sub job. If there is a way to find a single address, I would be grateful to learn it. I just spent 20 minutes looking for a customer that was registered under the wife's first and last name. I only had the husband's first name and the street name, not even the house number. Having the house number wouldn't work, anyway, if did search it that way.
I ended up going on the property appraiser's website, typing in the street name and pulled up all the homeowners that lived on that street. Then searched each name for the person I knew was in my system.
I appreciate your time and effort in trying to perform a workaround for this.
Currently, this option isn't available in QuickBooks Online (QBO). However, I have another way so you can easily find the information. You'll want to run the Customer Contact List report so you can search for the address. Let walk you through the steps.