The infographic below offers a helpful primer for how to best structure searches using advanced operators to more quickly and accurately drill down to the information you want. Google Search’s learning curve is an odd one. You use it every day, but still all you know is how to search. But the search engine has plenty of tricks up its sleeve.
This is by no means an exhaustive list of search operators and advanced techniques, but it's a good start that will help set you on the path to becoming a Google master.
Source : HackCollege