~~~~~~~~~~~~~~~~~~~~~~~~~
With Selection.Find
.Text = "aaa" ' text to be found
.Replacement.Text = "xxx" ' replacement text
.Forward = True
.Wrap = wdFindContinue
.Format = False
.MatchCase = True
.MatchWholeWord = False
.MatchWildcards = False
.MatchSoundsLike = False
.MatchAllWordForms = False
End With
Selection.Find.Execute Replace:=wdReplaceAll
With Selection.Find
.Text = "bbb" ' text to be found
.Replacement.Text = "yyy" ' replacement text
.Forward = True
.Wrap = wdFindContinue
.Format = False
.MatchCase = True
.MatchWholeWord = False
.MatchWildcards = False
.MatchSoundsLike = False
.MatchAllWordForms = False
End With
Selection.Find.Execute Replace:=wdReplaceAll
... <and many, many more just like this> ...
~~~~~~~~~~~~~~~~~~~~~~~~~

