TM issues aside, why would anyone develop a service using a domain so similar to the name of a Google service? I bet a majority of people would see and remember the domain as Google Clouds and not Goggle Clouds.
I am pretty convinced that the Google legal department will be able to convince WIPO that Goggleclouds is similar enough to be considered a TM infringement. Considering what has been decided to be TM infringing in the past, this looks like a clear case, especially if the domain is used for anything related to cloud computing. Anyway, the domain is too long and not catchy so I doubt anybody would take the chance.