Yep, I usually make and list or find the identifiers prior or seting my flight plan. Don't forget there is also a Text Search that will just search a name, partial identifier or city, but it takes longer.
We have it on our wishlist to add a predictive search, where if you selected the O instead of 0, you'd see the results and likely realize the error. I'll pass this along to Walter and the guys. Thanks for the feedback.