Hi Carola Ahlsson , thanks for your question! You can hover over the question icons in the Reports area to see a definition of the numbers.
Total searches: This is the number of times a search was conducted.
Searches with no results: The number of times a search was conducted that didn't return any matches.
Searches with no clicks: The number of times a user searched for something but didn't click through on any of the results.
Let me know if I can provide any additional clarifications. Thank you!