This illustration shows the View Logs tab of configuration management. From this page you can view database-stored logs of messages about transactions or errors occurring during OracleAS Certificate Authority execution.
It shows there is a search capability, with a text box into which you could type a search string.
The two categories of search, selectable from a drop-down menu, are Client Address and Message. The Client Address is an IP address. The Message can be any string you might want to search for, such as "successfully enrolled" or "certificate request accepted".