That's simply some code produced by the macro recorder to highlight:
• upper-case words of 2 to 4 characters
• single capitals and numbers bounded by < & >
• strings of capitals followed by numbers from which they are separated by '-' and bounded by < & >
As such it does the opposite of what you describe.

As I said:
For example:
https://www.msofficeforums.com/word-...ords-list.html
https://www.msofficeforums.com/word-...-selected.html
https://www.msofficeforums.com/word-...-document.html
https://www.msofficeforums.com/word-...ord-based.html
and, to include replacements:
https://www.msofficeforums.com/word-...ral-items.html
https://www.msofficeforums.com/word-...fractions.html
https://www.msofficeforums.com/word-...-document.html
https://www.msofficeforums.com/word-...ing-macro.html
https://www.msofficeforums.com/word-...rk-2013-a.html
https://www.msofficeforums.com/word-...sion-only.html

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]