The same search on FamilySearch's 1880 census. No results.
I'm not surprised there were no matches. The name combination is unusual. I searched for other first and last name combinations using wildcards at FamilySearch--and I got the expeted results. Their search is working. If Habbe Agena is enumerated in the 1880 census I will have to try another variant for his first or last name.
Thanks to FamilySearch for an interface that works.
But the question still remains:
Why can't Ancestry.com make it work?
Note added 19 January 2014: A reader correctly pointed out that I neglected to use the three letter minimum before a wildcard on the search. When that was done (and I followed directions), I got no results. The results screen that Ancestry.com returned to my initial search indicating there were too many matches needs to be revised. There weren't "too many matches" at all--I didn't follow directions.