yep exactly. I thought in that situation.

num_typo:1
typo_tokens_threshold : 10

typo_tokens_threshold would try to allow more typo error until 10 is reached. So just to be sure, it means in the upper case, if I have only one document with 0 or 1 typo, and 100 other documents with 5 typos. I will get only one result?