I started to use it for my coding experiences and it give vast of benefits about finding the measnings of error keys.
I am the one of the internet users which is really unconfortable of the Google's privacy violation. Thus I start to search on internet some alternatives to Google. Here what I found: (ALL THESE ENGINES DO NOT FOLLOW YOUR PRIVACY)
1- DuckDuckGo.com : It is relatively young search engine. It combines all the results from various well-known sources such as "Yahoo, Bing, Wikipedia, Wolfram.." also it runs it own crawler that digs deep side of the Internet that the major search engines does not realize. In addition it gives different keyword that can be use while you are typing your search keys. However one negative thing about the site is unfortunately it is relatively slower while showing the results.
2- StartPage.com : This site uses its own crawler and the results that comes from google. However it deletes all your personal info. like IP address while fetching results from google so they claim that google cannot trick over you. Another good think about the site, it gives you a shorthand bookmark option so that you can bookmark your results. Also it gives the result fast enough.
3- YaCy is a decentralized search engine that anyone can use to build a search portal for their intranet or to help search the public internet. All users of the search engine network are equal, the network does not store user search requests and it is not possible for anyone to censor the content of the shared index. You can download YaCy and install it on your device