No problem -- Yeah, there is no search bar. The only way is to make the task names clearer.
If you define the task names, you could use a simple CTRL + F to search through tasks
Hey!
Aayush is referring to is the action called 'Set Task Title'. You'll have to add this action somewhere in your workflow. You can customize it within the sidebar once the action is added. This will name all the tasks in the sidebar respectively