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It should really be simpler, here's a simple suggestion, just remove functions that have nothing to do with the searched text:
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Also, when you hover the mouse over the fill bucket it says "FloodFill" but when you search for "FloodFill" in the shortcut menu, it gives you 0 hits... After looking and looking I found out the name in the shortcut menu is actually "Flood Fill". It's just confusing, there's plenty of other tools that are named weird "Transform" is called "Shape Transform Position" in the shortcut menu, why does it have 2 names? It makes creating shortcuts unnecessary difficult.