When I think about it, I suppose I am thinking about this issue compositionally. Composition is typically the first thing I look for, and I don't really count missing exposure or focus as "not being able to make it work." The technical details are easy enough to figure out and fix.
But sometimes I just cannot make the any composition work, no matter what I do. I'm also talking about things where I can take my time. If I miss a fleeting moment, then I chalk this up to missing the "decisive moment" and move on. I actually find it kind of humorous right now. I see things that are really neat, but the scene just won't release the photo to me after trying several approaches.
I'll give an example: Walking home from work today, I passed a neighbor's yard where they had a large row of scraggly hedges at the road, but one really pretty and large flower, very out of place, had found it's way out from among these hedges. It looked pretty funny to me. But no matter the angle, distance, etc. that I tried, I just couldn't get a photo that expressed the scene.
I think maybe it is my "seeing." I am learning to be more observant of things around me in general, but this isn't translating all of the time to "seeing" as the camera sees.