To find a student in the Trainer Portal, simply start typing their Surname in the Search box at the top of the screen. As you type, a list will drop down showing the students and employers that match what you have typed. If you can see the person you want in this list, simply select them there.
If you haven't been able to find the right person in this list, hit the Search button. The screen will then show all students and employers who match your search. From here you can easily select a student to view their details, then come back to the list if the person you have chosen is not the right one. If you instead wish to filter your results between Students and Employers, the ability to do so is provided in this Search screen.