Anyone know how can I get a URL link that directs the user to the search result page as if I typed my candidate number into the form and hit search?
This web page uses AJAX to get the data when you submit the form. It does not redirect to a new URL. So, in short, there's no URL.
You can try querying the API to get the candidate data which does have a specific URL pattern: https://fa-axelos-prod-ukw.azurewebsites.net/api/scr/?first_name={first_name}&surname={surname}&candidate_number={candidate_number}&numberPerPage=20&offset=0
(Replace the variables in between {} with values of your choice.)
Example: https://fa-axelos-prod-ukw.azurewebsites.net/api/scr/?first_name=John&surname=Doe&candidate_number=213123&numberPerPage=20&offset=0
In this example I used John as first_name, Smith as surname and 213123 as candidate_number.
NOTE: you cannot share the URL of the API in order to recreate the page with those values, as you would with a normal URL.