Person search requires middle name

When connected to my enterprise environment Exchange server, why do I have to know a person't middle name to search for them?

If I want to search for the user whose full name is "Bob Anders Johnson" without the knowledge of their middle name, on pretty much any other search system, you can type in: 

"Bob Johnson" and results will arise including the desired result.
"Bob" produces all Bob X X names. There's about a hundred... too many!

But if I type in "Bob Johnson" no results... as it's trying to match a middle name of Johnson. WTF?!?!

I guess if I'm crafty, I could search for the last name, but that's silly if there's a lot of Johnsons, as there would be no way to hone the search after typing in the last name...

I don't know Bob's middle name, why does Outlook & Exchange require me to?

Hi RDW4,

I'm researching the issue and will update it soon.

By the way, you can also seek the solution in the Outlook for Mac forum:

http://answers.microsoft.com/en-us/mac/forum/macoutlook

Thanks for the reply, I think y'alls have a circularity issue with your support forums. I was sent here from there, though posting under a slightly different category... 

http://answers.microsoft.com/en-us/mac/forum/macoffice2011-macoutlook/person-search-requires-middle-name/9f76b16c-625c-4e97-9228-8ec1541572e4

Well, I gave you 2 years. I think that's a pretty good amount of time. Any progress? doesn't look like it as this issue persists up to today's Outlook for Mac 15.8.