Why wont Twitter Search find my friends, who I know have twitter accounts?

[Tool]

I just started my twitter account.
I follow a few soccer players and my brother, who i found without a problem.

Now I'm ready to follow my friends, which is the reason i created an account,
and for the life of me i can not find them through the search.
I don't get it. What am i doing wrong?

I click "Find Friends" then search their full, real name. I've also tried their account name.
This is very frustrating.
Please help.

[B*Family]

I let it look for my friends through my email but it won't let me search for anyone else I just get this error message: Loading Tweets seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.