I'm moving this to the Illustrator forum, from Illustrator for iPad, as it seems that's what you're using.
If you have been saving as Cloud Documents, then I would check in the "Cloud Documents" section of the Home Screen, which is a few entries down from the default of "Home."
The "Home" screen shows recently opened documents from the device you're on, and can vary from device to device. But the "Cloud Documents" tab will show everything that's been saved to Creative Cloud.
Your cloud documents will be in the format .aic, vs .ai for normal locally stored files.
https://helpx.adobe.com/illustrator/how-to/access-edit-cloud-documents.html
If you believe you stored the files locally, you'll have to search again for them on your old laptop.