Yes, you can change your search terms in OneNote when the results list is pinned.
Ed Bott

I am not sure how you mean. To the left of the results list there is only the quick search again, searching there doesn’t change the results. Though, you can leave the results open, make a quick search again (CTRL+E) then refresh the pinned results by choosing “Pin results” again (CTRL+O).

Is that what you meant?

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