Sub BoldTextWithinBrackets_AddQuotes()
Dim oRng As Range
  Set oRng = ActiveDocument.Range
  Application.ScreenUpdating = False
  With oRng.Find
    .ClearFormatting
    .Replacement.ClearFormatting
    .Wrap = wdFindStop
    .Format = True
    .MatchWildcards = False
    .Font.Bold = True
    While .Execute
      On Error GoTo Err_Handler
      If oRng.Characters.First.Previous = Chr(40) And oRng.Characters.Last.Next = Chr(41) Then
        oRng.InsertBefore Chr(34)
        oRng.Characters.First.Font.Bold = True
        oRng.InsertAfter Chr(34)
      End If
Err_Handler:
      oRng.Collapse wdCollapseEnd
    Wend
  End With
  Application.ScreenUpdating = True
lbl_Exit:
  Exit Sub
End Sub