1. If you're looking for a file on Google for any topic, filetype: will help:

   Example:  filetype:pdf how to learn bootstrap
   

2 -The asterisk (*) symbol can be used as a placeholder for any word or phrase.

     Example: how to learn * in 1 month

3 -Using site: searches within a certain website.

     Example:  site:udemy.com web development

4 -To search for a specific match, use quotes:

     Example: “What is bootstrap”

4 -Making use of Search a range of numbers, such as years.

     Example:  web development 2020..2021

5 -To receive results that are exclusively relevant to both keywords, use the AND Operator:

     Example: frontend AND backend

6 -The OR operator returns only results that are relevant to one of two keywords:

   Example: JavaScript OR  HTML

7 -site: is useful if you want to remove a website from your search results.

     Example: -site:youtube.com javascript

8 -You may locate news about a certain place by using location.

      Example: Location:US web developers.

9 -Define: allows you to quickly and easily look up the definition of a word or term.

      Example: define: CSS

10 -If you've just discovered a new website, you might be wondering what it's all about. so info: can assist you in learning more about that website.

      Example: info:freecodecamp.com

11 -inurl: allows you to search for information from a specific year.

      Example: inurl:2020 node.js

12 -This method can assist you in determining the time of various nations.

      Example time los angeles

13 -related: to find websites that are similar to others

       related:youtube.com

14 -The before: operator returns just results from before a specified date. Only a year or Day/month/year dates are required.

       Example: Python before:2020

15 -As previously, the after: operator will only return results after a specified date. Only a year or Day-month-year dates are required.

       Example: Python after:2020

16 -The - operator can be used to remove a term from the search results.

       Example: Javascript -CSS

17 -The - operator can be used to remove a term from the search results.

       Example: Javascript -CSS

18 -Use the OR operator to get results related to one of the searches:

        (javaScript OR python) free course