My memory isn't what it used to be and I'm not sure these are all what you're looking for, but I tried to find things at least involving one student. I haven't read all of these; just did a browse through of the unfamiliar ones I found with some searches.
Alix by Dreams is the start of a trilogy of sorts. Been a while since I've read it. I believe it's about two students.
Blind Side of Love by Dreams. Actress/Student. Last I heard the author was editing/rewriting for publishing.
Dinner is Served by Greek Warrior. Tutor/Student.
Dyslexic Writer by Red Hope. Two students. Make sure to read the note beforehand!
Fenced Fields by Dee. Rancher/Grad Student.
Fragments by Grit Jahning. Bar owner/Student(Waitress). Read the author's notes.
A Fresh Start by DS Bauden. Rancher/Student
Freshman Year by WarriorKat. High School Students
Hostage of the Heart by Ambrosia. Kidnapper/Student.
Imperfectly by BardBQue. Two Students. I think.
The Long Road to Morning by Chakan. Professor/Grad Student
Lost Faith by Damnation. Photographer/Student
Love's Caress by JL Nicky. Students/Roommates
October by Day. Lawyer/Student
Past is Present by Zee. Bouncer/Student
Quicksand by Blayne Cooper. PI/Student
Rapture by Darkenedkarma. <3
Shadows by J.D. Jenkins. Ex Drug Dealer/Grad Student
A Sibling's Rivalry by Katia N. Ruiz. Students.
Summer by Dee. Artist/Student.
Summer Heat by MJ. Gardener/Student
Staying in the Game by PruferBlue. Students.
A Year in Paris by Malaurie Barber. College Student/Nanny (There's a sequel)
Sorry, I got carried away. I hope you find something you were looking for here.