alter word removal function

I have a function that an expert helped me on but I need to amend it so that rather than extracting unwanted words it will substitute the word instead.

I am not seeing in my head how to do this.

I am in vba

Function replacemulti(Strin As String, Client As String, Marque As String) As String

    Dim Stroutput As String
    Dim ClientWords() As String
    Dim x As Integer

    Dim dbs As DAO.Database
    Dim rstWordExtractions As DAO.Recordset
    Dim rstWordExceptions As DAO.Recordset

    'create recordset of excluded words and of exception words
    Set dbs = CurrentDb
    Set rstWordExtractions = dbs.OpenRecordset("QryAliaswords", dbOpenDynaset)
    Set rstWordExceptions = dbs.OpenRecordset("TblExceptions", dbOpenDynaset)
    Dim strCriteria As String




Dim strCriteriaClient As String
Dim strCriteriaException
Dim LogicCriteria As Boolean
Debug.Print "replacemultiinput: " & Strin
LogicCriteria = False
    'split words
    ClientWords = Split(Trim(Strin))

    For x = LBound(ClientWords) To UBound(ClientWords)



        strCriteriaException = "[wordexception] = " & LogicCriteria
        strCriteria = "[sdesc] = '" & ClientWords(x) & "'"
        strCriteriaClient = "[sClient] = '" & Client & "'"
        
        
        strCriteria = strCriteria & " And " & strCriteriaClient & " And " & strCriteriaException
     
        rstWordExtractions.FindFirst strCriteria
        Debug.Print strCriteria
        If rstWordExtractions.NoMatch Then
            Stroutput = Stroutput & " " & ClientWords(x)
            Debug.Print "multi output :" & Stroutput
        Else
        
            rstWordExceptions.FindFirst strCriteria
            Debug.Print strCriteria
            If rstWordExceptions.NoMatch Then
                'ignore this word, it is in the
                'Extract list but not in the Exempt list
            Else
                Stroutput = Stroutput & " " & ClientWords(x)
                Debug.Print "multi output :" & Stroutput
            End If
        End If

    Next x

    
    replacemulti = Trim(Stroutput)
   
  
ProcExit:
   rstWordExceptions.Close
   Set rstWordExceptions = Nothing
   rstWordExtractions.Close
   Set rstWordExtractions = Nothing
   Exit Function
ProcError:
   MsgBox Err.Number & vbCrLf & Err.Description, , "replaceMulti"
   Resume ProcExit
End Function

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