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A search engine is a program, available online, which searches for files and documents by using key words, which in turn are mentioned in these documents.
Every search engine has its own characteristics, but the results can NOT differ from another search engine.
The programs we use to display the website content on our computer are called browsers.
You are more likely to find more information by using different search engines.
Significant rule to improve the results of our search is to choose carefully the search words and place the most important words last.