In this manager:
There is a way to add a search a term?
So, if you have 100 terms it will easier to find a term.
This one is not ported at all https://www.drupal.org/project/term_search
This module is not full ported to D8 https://www.drupal.org/project/taxonomy_manager
I also find this interested article to alter a task in a specific vocabulary. https://www.computerminds.co.uk/drupal-code/replacing-vocabulary-listing I created the view, but I still find out how to add a tab for that view in the overview taxonomy.
There other way to add an option to search a term in manager?