Search in filemanager not working?

[east1]

No matter what I enter in the "advanced search" window, nothing is ever shown as found result.
Also there seems to be no mention of this function in the help file?
MTA, East1

Screenshot: https://istvanleelossy.com/wp-content/uploads/dafilesearch.png

 

[urgido]

No matter what I enter in the "advanced search" window, nothing is ever shown as found result.
Also there seems to be no mention of this function in the help file?
MTA, East1

Screenshot: https://istvanleelossy.com/wp-content/uploads/dafilesearch.png

Are you searching for "class*" I mean with wildcard? because this would be great know if search feature allow wildcards.