1. To search papers on HowNet, you need a HowNet account first. Ordinary students can log in through the campus network and account, and find and download papers for free. If you have graduated, you need to register and recharge yourself to download articles. After logging in successfully, you can go directly to HowNet and search related papers with keywords or titles.

2. Enter China HowNet in Sogou browser first, and then click China HowNet official website. Then you will jump to the website of China HowNet. Of course, if you want to search directly, you can enter the file you want to find in the input box. However, if you want a deeper search, click Advanced Search.

3. Select the document database to search. On the operation interface, China HowNet divides its documents into different libraries, and we choose according to our own document scope attributes.

4. First open China HowNet official website and select the advanced search option on the right side of the page. Click the "Professional Search" option in the menu bar above. The interface of professional retrieval is shown in the figure below. Just enter the required retrieval expression in the input box above. The following is a simple tutorial.