Class find (F4) should do more intelligent search
In other environments searching for a class (or other identifier) allows a sort of Pascal case search. E.g. if I'm trying to find the CustomerOrderInfo class, I could type COI and that class would appear in the list of results (along with ColourOpacityInstance, and other matches).
The code completion in the editor some something along these lines, though not exactly (and I've not been able to work out its rules!)