[Solved] How to not count cell if cell contains sub-string

the_prole Asks: How to not count cell if cell contains sub-string
I have the following formula to count cells within a range B10:B1095 which do not contain certain strings

Code:
=COUNTIFS(
  B10:B1095, "<>",
  B10:B1095, "<>Manual",
  B10:B1095, "<>TODO")

How can I add an additional condition to check if the cells in a range do not contain a specific sub-string?

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