hey this is a rouhg code that should do what u want
Sub test()
With ThisWorkbook.Worksheets("Sheet1"
i = .UsedRange.Rows.Count
For h = 1 To i
On Error Resume Next
strrow = Cells.Find("DISS"

.Address
If strrow = "" Then
Else
strdelete = Range(strrow).Row
'MsgBox strdelete
Rows(1).EntireRow.Delete
End If
strrow = Cells.Find("JTE"

.Address
If strrow = "" Then
strdelete = Range(strrow).Row
'MsgBox strdelete
Rows(1).EntireRow.Delete
End If
If strrow = "" Then
strrow = Cells.Find("GMS"

.Address
strdelete = Range(strrow).Row
'MsgBox strdelete
Rows(1).EntireRow.Delete
End If
Next h
End With
End Sub
just put it in a module and run it...also i would make sure u have a saved backup before u run this

tell me if u need more help