When you save a search, it will always be defaulted to private unless you opt to make them public. You can always change the privacy setting of a specific saved search by clicking on the Settings icon for a specific search and then the Edit Name/Alerts button.
To make a saved search public, simply click on the Settings tool next to a saved search and click on the Edit Name/Alerts button. Then click on the Make URL Shareable check box and press Save. Once you’ve done this, you can copy the URL from the browser and share it with anyone you like.
Note: You must save a search before it can be shared. Additionally, when you shared a saved search, others can see the search criteria and the results.