Traditional horizontal search engines cannot always identify the target audience niche or vertical industry of a page or site. Vertical search engines address this issue by the nature of their design. They identify sites according to more specific criteria and sometimes even by human input.
There's always a miasma of misinformation emerging from the higher education sector as to which are the 'best' courses to take. My advice would always be to ignore the perceived wisdom and look for the most reliable evidence on the ground.