At least some of the issues you're having, especially with numbers, are because the code uses ".MatchWholeWord = True". Without this, there would be a significant risk that some of your other Find/Replace expressions would be updating parts of words. That may also explain why it doesn't work with "No-width optional break" text. I don't understand why you'd bother with rows 5-11, since the Find & Replace text is the same for each of them. For the remainder, you might use a separate worksheet and run a separate Find/Replace without the ".MatchWholeWord = True".

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]