# How to use Web Search Engine

This is my first time to write in English. If there are any mistakes, please tell me.

## Web Search Engine?

The web search engine I usually use are Google, Baidu, Bing.

They are called Full Text Search Engine. They get keywords of information from web site. If you search for a question, web search engine will extract the keywords in your question, and search keywords in database of web search engine. So using keywords to search for answers is faster and more accurate.

## Use of effectively

First, use keywords to search you question, not interrogative sentence. There are many unnecessary prepositions and adjectives in the question. Usually, I will search for nouns in the question, there's a space between nouns. These nouns I called keywords. Although we can get answers through interrogative sentence, but it get more accurate answers using keywords. Such as keyword keyword keyword.

There are many duplicate answers in the content farm of web search engine. A lot of junk information is produced by Content farm, the web search engine can't handle this junk because there are many keywords in content farm. In china, CSDN is a content farm, I use keywords -csdn to search computer knowledge, use -csdn to exclude all answers about csdn, also you can use keywords -baidu to exclude baidu's answers. Using it skillfully can also improve the probability of finding the answer.

"" is easy to be ignored. Although we use keywords to search, but the keywords can't understood by web search engine, so using "keyword" keyword can help search engines determine the keywords we need. Keyword in the middle of "" will be matched exactly

If you want to search keywords in title, body or website, you can use intitle:keyword, intext:keyword, insite:keyword.

Of course, these skills can be combined. If you want to search an important keyword in the website, you can use "keyword" insite:website