Universitiesaround the world are facing the problem that how

Universitiesaround the world are facing the problem that how to use these resources efficiently to serve the students that are more culturally and socially diversified .这句话中,are more culturally and socially diversified为什么可以这么用呢,语法依据是什么,因为我写的是 social and cultural background is more diverse,范文给的是上一句,我见过这种写法,但不知道为什么可以这么写