In saved searches you can create a search, using the filters.
How to create 'saved searches' in Sales Navigator
Click all filters on the upper right corner to filter according to your verticals.
Click save searches on the upper right corner.
Name the search accordingly and click save searches.
Now, your searches are stored under saved searches. When you open your searches, the prospect list will appear but the URL is not yet finalized.
Why does this URL not work?
The URL doesn't contain the required parameters for hubsell sourcing process.
In order to get the finalized URL please take the following steps:
Scroll down to the bottom and jump to the 'page 2'
Simply get back to the 'page 1'
You now have the complete URL :)