Knowing how to google properly will greatly improve your working effciency.
In case you dont know what is Google Search, Google Search is a web search engine developed by Google. It is the most used search engine on the World Wide Web across all platforms.

Search Relationship

AND

Syntax:

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keyword1 AND keyword2

OR

Syntax:

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keyword1 OR keyword2

Precise Search

Search Exact Wording

You need to use "" for exact wording.

Syntax:

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"keyword1keyword2"

Search for Exact Site/Domain

No need to add https:// after site:.

Exact Site

Syntax:

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site: <thesite>.com

Exact Domain

You can even just search for exact domain.

Example:

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site:.github.io

Search for Exact Title/Text

Search 1 keyword in title

while another keywords can be anywhere.

Syntax

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keyword_anywhere intitle:title_keyword

Search multiple keywords in title

Syntax

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allintitle:keyword1 keyword2 keyword3

Search 1 keyword in text

while another keywords can be anywhere.

Syntax

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keyword_anywhere intext:title_keyword

Search multiple keywords in text

Syntax

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allintext:keyword1 keyword2 keyword3

Search for Exact FileType

We use filetype: to find exact file type.
Very useful when it comes to research topic.

Syntax

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filetype:pdf

Non-precise Search

Synonym

We use ~ to make synonyms as keyword. This make search easier.

Syntax

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~keyword

Range

..

Between

Example - Python searches results between 2018 and 2019

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Python 2018..2019

After

Example - Python searches results after 2020

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Python 2020..

Wildcard

*

Example - 一生一世

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一生*世

Often used in Chinese or with site: syntax.

Exclude Search

-

Syntax

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keyword -word_to_exclude

Often used with site: or filetype: syntax.

Google Dictionary

Syntax

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define:word

Reference

编程随想的博客 - 如何挖掘网络资源[2]:Google 搜索的基本语法