javascript - Filter or search in jQuery easy Ui -

I am working with a awesome plugin - to display jQuery EasyUi tree structure . Everything is working fine except for the functionality of search, it does not produce the appropriate results.

  http://jsfiddle.net/sanno_s88/rhqbk496  

If I try to search for any parent nodes, Should also return. But in this scenario, I use the dofilter method, it works properly with the hair nodes, but when we search for parents, the child trims the nodes.

For example, we search for all children, parents, as we all would like to find in Javascript search.

I can write my own search logic, but wanted to know that we do this doFilter function

Any ideas will be highly appreciated!