Try this

I'm pretty sure that the Word VBA gurus that hang out here can improve it, but it seems to work


Option Explicit


Sub Test2()
    
    With Selection
    
        .HomeKey Unit:=wdStory
                
        .Find.ClearFormatting
        
        .Find.Text = "[! ]^=[! ]"
        .Find.Forward = True
        .Find.Wrap = wdFindContinue
        .Find.MatchWildcards = True
        
        Do While .Find.Execute(Forward:=True)
            .MoveLeft Unit:=wdCharacter, Count:=1
            .MoveRight Unit:=wdCharacter, Count:=1
            .MoveRight Unit:=wdCharacter, Count:=1, Extend:=wdExtend
            .Range.HighlightColorIndex = wdPink
            .MoveRight Unit:=wdCharacter, Count:=1
        Loop
        
    End With
End Sub