In a standard search, the page that shows up will be the basic layout of all searches. With the custom search though, you can customize many things such as how many websites to be displayed, and you...
google.com
Go to www.google.com and you can type in anything and it will tell you or show you things about it. You can search a map.
Go to Google.com, type in your query, hit enter.
After you type in Google.com, you then type your query in the search box and press search. Put in Google.com