There is no specific instruction I can give you for this scenario. You'll need to automate the exact steps that a user would perform. I assume somewhere you click on a letter or enter it in a text box which filters your results. You would need to perform that step. The results will hopefully come back as an HTML table which you can use with the HTML Table Designer to be able to iterate through them and look for what you want.
The problem is, the result is coming as list but not in a table. When I try to interrogate using HTML Table Designer it does not interrogate. Therefore I used "Default" and interrogate the web content as a form. I attached a screenshot of the interrogated element. What can I do in this type of scenario? How can I click the specific name from this list?
If you can match each of the elements under one control, there is a property on the control called UseKeys. When enabled, it allows you to iterate through the various items that the control matches to. The method to pass to a ListLoop is called GetClones and will allow you to access each one. With access to each one, you could check its text and click on the correct one.