Google is widely used search engine.

Let me tell you something, What is a Search engine do you know that?
Search engine is used to search pages and information over the internet. and google is the world's most popular search engine .

How google Search: 

 There are many tips and tricks used over google to find the desired information from the sea of the information from the internet.
And today i will tell you one of the searching tricks used to get desired result.

Let see the 1st Picture:

In this picture we use the searching phrase normaly people use for searching  the pdf book, but look at the search result it is showing much amount for this search and there is no reasonable pdf book is on the top.

Now see the second picture for the searching pdf books finding trick

 

Look at this picture with full of your concentration. in this i type the same word for searching i use in last picture except one thing i  use filetype here, what is file type and how it control the results as it done in this comparison the both searches results you will notify the difference by yourself.
In this picture all are the direct links to the pdf books.


Use this trick and comment here does it work for you or not?
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