Admin SDK - Reports API - Google Drive: does not return PREVIEW and PRINT events

How can I get PREVIEW and PRINT events from Reports API? Here are links to documentation:

1. PREVIEW - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/drive#preview
2. PRINT - https://developers.google.com/admin-sdk/reports/v1/appendix/activity/drive#print

Regarding PREVIEW, I've noticed that it creates just VIEW even if I open the file in preview mode via Web app: Screenshot. So it's not clear when PREVIEW should be triggered.

Regarding PRINT, I used both ways:

• hotkey Command+P
• File -> Print Nothing work, it doesn't create PRINT event.

I'm using googleapiclient (Python) library to get activities. Here is a code:

client = build('admin', 'reports_v1', credentials=credentials)
response = client.activities().list(
    userKey='all', 
    applicationName='drive', 
    maxResults=5, 
    eventName='print',
).execute()

This code works properly for getting other events such as DOWNLOAD, EDIT, etc. But for PRINT and PREVIEW it always returns the response without events:

{'kind': 'admin#reports#activities', 'etag': '"SOME_ETAG"'}