Rules tiebreaker

[Twinkel_Star]

Can anyone explain the tiebreaker rules?
I already had 2 games that ended in a tie and I lost anyway. In the rules I can't find anything about a tiebreaker.
Just wondering what's the reason why I loose tiebreakers and what I need to focus on to have a chance to win in case of a tie.

[nokii]

The player that discards lesser tiles wins the tiebreaker

[Twinkel_Star]

Thanks!