Function to delete text from all cells that do not contain specific text values?

[etwibell]

Here is the function I have so far:

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This works correctly and deletes the text from all cells that do not contain "D.R." However, I also want to keep cells that contain the text "F.G." and "WIP".
I'm not sure how the syntax of the OR operator would work in this situation. Any help is appreciated. Thanks.

[jolivanes]

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[Fluff13]

How about

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