The code I posted in
https://www.msofficeforums.com/word/...-list-1-a.html has all you need to make text existing text bold, using a list in Excel to hold the text strings.
To highlight them instead, see:
https://www.msofficeforums.com/word-...ord-based.html.
If you want to replace the text, see:
https://www.msofficeforums.com/word-...d-replace.html.
For PC macro installation & usage instructions, see:
Installing Macros