Your code fails because it lacks the \ before the { and }. Without that, those characters act as wildcard escape characters ebut what you have between them then doesn't conform to what a wildcard search requires to be between them.
Try:
Code:
Sub Demo()
Application.ScreenUpdating = False
With ActiveDocument.Range
With .Find
.ClearFormatting
.Replacement.ClearFormatting
.Text = "\{[MTWFS][onuedhuriat]{2} Workshop\}"
.Replacement.Text = ""
.Forward = True
.Wrap = wdFindStop
.Format = False
.MatchWildcards = True
.Execute
End With
Do While .Find.Found
If .Information(wdWithInTable) = True Then
.Rows(1).Shading.BackgroundPatternColorIndex = wdYellow
'.Delete
End If
.Collapse wdCollapseEnd
.Find.Execute
Loop
End With
Application.ScreenUpdating = True
End Sub
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