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@quietphysicist using spaces before such substitutions is key. I normally use before and after and then search for the word without spaces to catch any weird edge cases.
@quietphysicist meanwhile the occutrouser of my pants needs to make breakfast.
@quietphysicist strike that. Reverse it.
@sfleetucker good points, and also run a spellchecker just in case (even though that doesn't always catch everything)