Sub Demo()
Application.ScreenUpdating = False
Dim StrOut As String
StrOut = " "
With Selection.Range
  With .Find
    .ClearFormatting
    .Replacement.ClearFormatting
    .Text = "[A-Z]{2,}-[0-9A-Z\-]{1,}"
    .Replacement.Text = ""
    .Forward = True
    .Wrap = wdFindStop
    .Format = False
    .MatchWildcards = True
    .Execute
  End With
  Do While .Find.Found
    If InStr(StrOut, " " & .Text & " ") = 0 Then StrOut = StrOut & .Text & " "
    .Collapse wdCollapseEnd
    .Find.Execute
  Loop
  .InsertAfter vbCr & Replace(Trim(StrOut), " ", ", ") & vbCr
End With
Application.ScreenUpdating = True
End Sub