No. The combo count only increases when you hit a monster (not kill). So, naturally, the best combos = Larger number of hits to kill + Large mobs. E.g. Zombie Mushroom mini-dungeon floor at 2x.
Oh, by the way, this doesn't only show for beginners. It shows every job level after yours, not just 1st - 4th when you're a beginner. I'm 1st job and it shows 2nd - 4th.
Looks like this:
Spoiler
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