Google clone using js, jquery and html only. It uses google's CSE(Custom search engine) to fetch the results.
Go to https://programmablesearchengine.google.com/about/ and click on "get started".
In edit search engine, click on the button named "add".
Type the link of the website, you want to search and name of your custom search.
Click your custom search and click on the button named "save and get code"
copy the link in that code that will look like https://cse.google.com/cse.js?cx=xyzsada" and paste it on "LINK HERE" in search.html of this project.