VISA APPROVAL TRACKING - If you want to know the status of the visa application. An application number is given to the applicant which can be used to track the staus by entering the details in here.

VISA ENQUIRY AND PRINTING - If the application of visa is approved then you have to enter the application number or the passport number in here to be able to see the details and you can print the visa from here.

I guess you used the VISA ENQUIRY AND PRINTING that's why there was no result that appeared.