Regex Object Retrieve problem

Could you kindly advise on how to use regex to find the object under object repository?

My case is:

...

When I tried to use properties with Name=class, Value= any of the regex, no object can be retrieved.
eg.,
/x-kry-editable-cell x-grid-cell x-grid-cell-OrderedQty/
/.+?x-kry-editable-cell x-grid-cell x-grid-cell-OrderedQty/b