The semicolon is the visual representation of the NULL character value in multi-value tags.
You don't have to include it in your searches, just remove "Example."
If the question is strictly about removing certain characters in tags, that would work.
But I am guessing the OP wants to remove a complete value in a multi-value tag.
As it happens I struggled with something like that myself recently, and I failed to find a good solution.
Suppose a track has values for the tag 'Keywords' such as: aaa, bbb and ccc, and you want to remove the bbb value.
By simply using text replace, you would get something like this:
So this would probably need some regex magic.
I've tried a few solutions, using anchors for start/end etc., but none of them worked perfectly for all these examples.
So I am interested too if someone has the perfect solution.