Some journals have a google scholar page where you can see how many of their published articles got cited and their h-index.
Example: Scholar page of Advanced Journal of Science and Engineering
How is it possible to find the page for a specific journal (except clicking on the link they sometimes provide themselves on their website)?
The basic principle is that Google Scholar pages are for authors; it is not for journals. This is not always the case that a journal will create a Google Scholar page. If it does, it is posing itself as an author (as commented by @Anonymous Physicist). So, the example that you have given is very unusual.
However, if you are interested in articles from a specific journal, you could use the advanced search option in Google Scholar and enter the journal name in "Return articles published in" textbox (in my example: I am interested in articles published in the Machine Learning Journal).
