Template-Task-related EventLogEntries

Hi,
I am trying to retrieve EventLogEntries that are related to Template Tasks modification (creation/update/deletion). It seems that there is no way of querying such events: even if I pick up an EventLogEntry that appears on my personal history and query it using its id, my Shotgun request will return an empty result.
Do you know how such events can be queried? Thank you very much.