How to search pipeline parameter's value from dashboard

While invoking a child pipeline we pass pipeline parameters who’s values would change for each incoming document to child pipeline.

Is there a way to search with some key word which will get us the child pipeline’s instances with the pipeline parameters having that key word?

I don’t believe there is a way to search for parameter values, but you can search for the execution label. The label for the execution can be set in the Pipeline Execute snap using an expression. So, if what you’re interested in is a relatively short snippet of text, you can include it in the label.