To use Saved Search, select Advanced to the right of the People Search box to bring up the Advanced People Search page. Enter your search criteria and run the search. Modify your search criteria if needed to refine the results. Select Save this search at the top right of the Search results page and select the frequency for the Email alerts.
To manage your Saved Searches, select Saved Searches from the top right of the Advanced People Search page. You will see a list of your Saved Searches by name. You can select the Saved Search name to rerun your search, delete a Saved Search, view “New” (latest) Saved Search results, and edit the Email alert frequency. It appears that you cannot edit your Saved Search criteria, but you can delete the Saved Search and save a new one.
I've been keeping track of my Saved Searches for several weeks and it appears that many of the “New” results have been reported before. The Saved Search feature should still be useful though, even if you have to ignore some previously reported results. It automatically runs your Saved Search at your selected Email alert frequency so you don't have to.
The LinkedIn free Basic personal account allows you to save up to three searches. If you have three Saved Searches, you will need to delete one of them before saving a new one. You can upgrade your account to receive more than three saved searches or to receive the results daily instead of only weekly or monthly. See also the LinkedIn Learning Center.
See my complete list of LinkedIn Tips.