Try:
Sub Demo()
Application.ScreenUpdating = False
With ActiveDocument.Range
With .Find
.ClearFormatting
.Replacement.ClearFormatting
.Text = "[!\(\-]{1,}"
.Replacement.Text = ""
.Forward = True
.Wrap = wdFindStop
.Format = False
.MatchWildcards = True
.Execute
End With
Do While .Find.Found
Do While InStr(.Text, vbCr) > 0
.MoveStartUntil vbCr, wdForward
.Start = .Start + 1
Loop
If .Text = "" Then Exit Do
If .End = ActiveDocument.Range.End Then Exit Sub
.Font.Bold = True
.Collapse wdCollapseEnd
.Find.Execute
Loop
End With
Application.ScreenUpdating = True
End Sub