he clearly means he spelled the name of the players wrong and therefore the quiz didn't accept them as correct answers.
Aha, the eth. Alt+0240 for lowercase, 0208 for uppercase.I got 31/35 within about 90 seconds. Eventually ended up with 34/35 and tried about 5 different ways of spelling 'Eidur Gudjohnsen'.
Check the screenshot and see what I mean regarding his name.