Thanks for you quick response. There have been a lot of other responses, and I will respond to each of them.
I changed the names as suggested and it works to find the folders now. So as you suspected, the problem is more a tactical issue than a flaw. Namely, since Spotlight segregates by type, the folders show up in the "Folders" sections, whereas in Alfred, even with 40 items displayed, the lack of prioritization prevents them from showing up. I may just keep a special name for the folders for now.
My feeling is that if the limit of 40 were not present, then after finding something ve