Try a
wildcard Find/Replace, where:
Find = [!^13^11]@^0151[!^13^11]@[^13^11]
Replace = ^&
and you specify the replacement format as bold. As a macro, this might be implemented along the following lines:
Code:
Sub Demo()
Application.ScreenUpdating = False
With ActiveDocument.Range
With .Find
.ClearFormatting
.Text = "[!^13^11]@^0151[!^13^11]@[^13^11]"
With .Replacement
.ClearFormatting
.Text = "^&"
.Font.Bold = True
End With
.Forward = True
.Wrap = wdFindContinue
.Format = True
.MatchWildcards = True
.Execute Replace:=wdReplaceAll
End With
End With
Application.ScreenUpdating = True
End Sub