Sub Delete_Slides_TextinTitle()
Dim Ppres As Presentation
Set Ppres = ActivePresentation
Dim PPS As Slide
Dim StrNo As Long
Dim Titel As String
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
For Each PPS In Ppres.Slides
'slide has a certain text in Slide Title
Titel = PPS.Shapes.Title.TextFrame.TextRange
StrNo = InStr(Titel, "Project")
If StrNo <> 0 Then PPS.Delete
Next PPS
End Sub