After reading the above comment I went looking for Unicode documentation talking about the different normalisation formats. That was a point I read that surpris

After reading the above comment I went looking for Unicode documentation talking about the different normalisation formats. That was a point I read that surprised me because I hadn’t ever thought of it. They said search should be insensitive to normalisation form - so generally you should normalise all text before running a search. That’s a great tip - obvious in hindsight but one I’d never considered.