Kanji lookup resource by "primitive" (not radical)?

Is there some online tool that would allow me to look up all kanji that contain a certain Heisig “primitive” element, even when it is not the radical? For example, I wanted to find all the kanji that have the “guillotine” element in them, on the right hand side. I came up with these in a sort of manual search way:

决, 決, 快, 抉, 缺, 袂, 鴃, 訣.

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I found a resource here:

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Here’s another resource: https://zi.tools/?secondary=search

This site has an incredible amount of pan-language 漢字 info.

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