I think that's one of the reasons we prefer to work with professional indexers, people who understand the nature of the work. Building a network of phrases that alludes to a similar topic allows for a more profitable search than just using such a specific, tight terminology that if you don't actually use it, you can't find it. It's the same sort of thing as if I spell “co-operate”, “co-op” or “coop”; I can find some, but I won't find all.
I think that's what André was pointing to. We have indexers who are basically trying to unify the approach taken to all of the parliamentary documents we produce to make sure that outsiders or insiders who want to access specific information end up with the best results.