I have Mountain Lion ( 10.8.2)  and Outlook 14.3.0

Search in email inbox works properly.

Any suggestion?

I still tried deleting these files in your User’s Library/Preferences folder:
com.microsoft.Outlook.SyncServicesPreferences.plist
com.microsoft.SyncservicesAgent.plist
and delete also in the User's Library/Preferences/Microsoft/Office 2011 folder OfficeSync Prefs

Nothing is changed

Thanks a lot