How do I adjust these adjustable cabinet hinges?

Here is the hinge I am trying to adjust.
The bottom left, in this picture is the best I can get it. It’s pretty close to parallel with the bottom shelf of the cabinet, and the hinges are adjusted as far down as it will go. I’ve tried to adjust the right hinges, but I can’t seem to get the doors to match. Do I need to completely reinstall the hinges?