A family of Microsoft word processing software products for creating web, email, and print documents.
Try using the following code in a macro
Selection.HomeKey wdStory
With Selection.Find
Do While .Execute(FindText:="[ḍḏŷḥṭṯẓṣšāīūḌḎŶḤṬṮẒṢŠĀĪŪʿʾ]", Forward:=True, _
MatchWildcards:=True, Wrap:=wdFindStop, MatchCase:=True) = True
With Selection
.Words(1).Font.Name = "EB Garamond"
.Collapse wdCollapseEnd
End With
Loop
End With
End Sub