Searching for INTERnet is same thing as InterNET. Exceptions include some operators such as OR.
If you want to find only pdf documents or excel spreadsheets, use filetype: operator.
Use the define: operator to look for definition for any word.
Do you know that Google Search works as calculator? Type in the search bar for quick calculation and google will give the result. Use +, -, *, / symbols and paranthesis. You can also use google for unit and currency conversions, example: celcius in kelvin
To search any particular website, use the site:websiteurl operator.
Use ~ operator to search for similar terms as well.
If you want to search for exact phrase, use quotes (like "search term")
By default, when you do a search, Google will include all the terms specified in the search. If you are looking for any one of one or more terms to match, then you can use the OR operator (Example: internet marketing OR advertising).
Use syntax: time in PLACE, and Google will give present time for the place.