How Google Process Search Results at Each Query?

When we search anything in Google; the result shows instantly. This is really an amazing! But, have we ever thought that how Google is showing such correct results within a mili-second? Or have we thought ever that what the process or steps involved in Google’s Search process?
Here, the 3 simple but exact process will be described about how Google is usually shows the data at their result page and what the tasks are done at their backend.

The basic method of showing results in search engine is:

Crawling & Indexing Contents.
Algorithm to Filter.
Final Search Result.

So, the details of each steps are as follows:

How Google Search Result Works

1. Google Crawling And Indexing

When a new page is added in cyber space; Google Bot comes and crawl it. After crawling, each data is sorted and indexed to store on their huge data center.

2. Google Algorithms To Filter Results

More than 200 algorithms are followed by Google in this stage to refine search results when anybody put a keyword through search engine’s search box. At that filtering time the following steps are strictly checked by Google:

Keywords submitted by Web User:
Algorithms to find out Clues related to searched query
Understating of Query on the bases of various clues
Pulling out documents from Index on the bases of clues
Ranking of Web page in Google Search Results
Freshness of Website and Content
Snippets of Web Pages
Answers for Quick Facts

3. Fighting with Spam

To filter out the spam from search result, Google’s engineer works a lot to identify the spammers. They have developed lots of factors to detect spam. The following issues works on behalf of it: