How to find Word documents on the LAN by content?

Question

PowerShell

Good afternoon, the task is to find on the workstations of the domain to find documents in the doc, docx format, containing certain phrases, let's say "For official use". How can this be implemented with Powershell?
I only had enough knowledge for this:
import-module activedirectory
$searchbase = "OU=test,OU=Computers,OU=test,DC=test,DC=test,DC=ru"
$path = "c:\test\ie.csv " file to save results
$complist = get-adcomputer -filter * -searchbase $searchbase | where {$_.enabled -eq $true} |select -expand name
$complist | foreach {(test-connection -computername $_ -count 1)
if (test-connection -computername $_ -quiet)