Analyzing multiple files with logrt, windows example

I want to look for a content in pultiple log files. For example my log files are placed in:

C:\Users\Aigars Kadikis\VirtualBox VMs\centos7\Logs

In this particular example each log file is one VirtualBox session. In these log files there is information like how long the virtualbox machine has been online:

25:43:08.089118 Changing the VM state from 'DESTROYING' to 'TERMINATED'

This shows the machine has been online for 25 hours.

Let's say I want to know how long each session has been lived. In this case I need to use logrt function in zabbix. And the magic key to define the scope of all 4+ files which starts witl VBox.log* are:

logrt["C:\\Users\\Aigars Kadikis\\VirtualBox VMs\\centos7\\Logs\\VBox\.log(\.[0-9])?",TERMINATED,,,,,]

Since VBox.log is the active process and it has no "TERMINATED" keyword inside then there is only three results: