To email the search results -
- Type the search string that you want to search in the text box and click search.
- Once the search is completed, the user will see an Email button near the text box, as shown in the image below.

- A pop-up will open with the email address field auto-populated with the email of the currently logged-in user. The user may change the email if needed or add multiple comma-separated email addresses.
- Click on the 'Send' button.
- Two emails will be sent to the entered email address with an attachment of the search result.
- An email will contain search count keywords in the subject line, like a screenshot below.

PS: View Metadata Search, Salesforce quick search app on Salesforce AppExchange: https://appexchange.salesforce.com/appxListingDetail?listingId=a0N30000009wgF7EAI