Hello dejob,
Thanks for posting in the Apple Support Communities.
We understand you're having a problem locating events in the Calendar app on your new MacBook Pro, right?
If we have that correct, could you let us know if this is happening when you Return to search for a result as opposed to allowing suggestions to appear? Check out the details below to see if this may help in what's occurring as this may be different than what you were accustomed to doing before. You can also locate more details, here: Search for events in Calendar on Mac - Apple Support
• In the Calendar app
on your Mac, enter a phrase in the search field in the top right of the Calendar window.
As you type, matching titles, locations, attendees, and notes appear in a list of search suggestions below the search field. To search using a suggestion, click it. To search for events that contain exactly what you entered, press Return.
If you're still unable to locate some entries, can you test this in another user account on your MacBook Pro? This will help to isolate whether this is related to information on your user account or not to focus on. If you need assistance with adding a new user to your Mac to test with, check out the steps located in this resource: Add a user or group on Mac - Apple Support
We hope this is able to help in determining what's occurring. If not, let us know which steps you've taken so far and provide any additional helpful details. We'll gain a better understanding to provide the next best steps to take.
Have a great day!