Even though it doesn't show the error message, it may be due to the fact that the software won't allow you to search anything less than the set number of characters configured by the admin. There's a good reason for this, too. If he allows 2-character searches, the web server would take a nice little hit, possibly bringing it to his knees, just from the re-indexing alone.
Your best bet is to use this in the Google search box:
Code:
TERM site:chiefdelphi.com
Where "TERM" is what you're searching for (in this case, the 2-digit team number).