Good afternoon.
With no compression in two cylinders I would be surprised if it did start. There is a reason for that. It is possible that the timing belt failed and when it did, that failure caused valve damage to the cylinder head.
This will need to be verified.
A shop can do a leak down test to confirm by adding shop air into the cylinder and finding the leak.
Roy
https://www.2carpros.com/articles/how-a-timing-belt-works
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Sunday, June 10th, 2018 AT 12:31 PM