A problem with Search?

[David W. Cantrell]

Moments ago, I did a search for

central dellanoy

It gave only one result: A089165, Partial sums of the central Dellanoy 
numbers. Of course, I was then able to go easily from that sequenece 
to what I wanted: A001850, Central Dellanoy numbers. But why wasn't 
A001850 also found by my search? Surely this is a bug (or else I don't 
know how to use Search properly).

David