Search by Authors don´t show all the names

i’m ussing Ojs and when enter to serch by author (adding /search/authors on URL) showme some author but not all them.

I read the file classes/article/ but don´t understand why dont the meaning of ? in the querys and how to show (if is posible) everyone of the querys to search the error.

When i pass the name or familyname by URL to show the detail of author jobs it works.