How to search for useful literature for literature research?

Literature review is an important chapter in the thesis. The purpose of literature review is to study relevant research literature and find out the research gap that needs to be solved. Many years ago, before the Internet, students had to look up abstracts of journals in the library and then ask the librarian to apply to borrow journals, which was very time-consuming. Nowadays, with electronic databases such as EBSCO, ProQuest, and JSTOR, you can easily search for the required documents through the university library.

In addition to the above methods, if you want to search for literature at home for free, you can use Google Scholar https://scholar.google.com.hk or Microsoft Academic https://academic.microsoft.com/. They are free academic search engines.