Try changing your search... Try "RHCA" or "RHCE" only.
This was more of a general comment on the demand of developers rather than administrators, but yeah, I do search a variety of terms.
Well keep in mind that "developer" refers to anyone working in an entire field. And system admin refers to less than 1% of the IT field. So in one case, you are looking at a super general title. In the other, a super specific one.
You know, I didn't think about it like that.