There are some registry that can enable you to do quick search on some keyword from the group search bar.
here is one of the snippet that you can try to import to your regsitry .
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchURL\m]
@="http://ectwebapp.ms.com/eoffice/lcs/fcgi-bin/livemeeting/meeting.fcgi?action=search&prefix=%s"
" "="+"
"%"="%25"
"&"="%26"
"+"="%2B"
"#"="%23"
"?"="%3F"
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\SearchScopes\{F3BB656F-208D-4A51-B3A1-029534D6EEBB}]
"DisplayName"="MyMeeting"
"URL"="http://ectwebapp.ms.com/eoffice/lcs/fcgi-bin/livemeeting/meeting.fcgi?action=search&prefix={searchTerms}"