How to allow search results (Pop-ups): When you click a search button for the first time, your browser might block the results thinking it is unwanted advertising. Here is how to fix it:
Look at the far right of the address bar (where you type website addresses).
You will see a small icon that looks like a window with a red cross [x].
Click the icon and select the option: "Always allow pop-ups and redirects from sites.google.com".
Click Done, and then click the search button in the portal again.