1. Determine the research objectives: First, clarify your research objectives and problems. This will help you better understand which documents are most valuable for your research.
2. Use keyword search: use relevant keywords to search in academic databases or search engines. This will help you find documents related to your research topic.
3. Read the abstract and introduction: read the abstract and introduction before reading the literature. This will help you understand the main content and purpose of the literature and whether it is relevant to your research.
4. Evaluate the author and publisher: check the author and publisher of the document. If the author is an expert in this field and the publishing institution is a well-known academic journal or publishing house, then this document may be more valuable.
5. Check citations and references: Check the list of citations and references in the literature. This will help you to know whether this document has been widely cited by other scholars and provide you with more clues about related documents.
6. Read the full text: If you think this document is valuable for your research, then you should read the full text. In the process of reading, pay attention to the methods, data and conclusions of the literature and think about how they are related to your research.
7. Record key information: When reading literature, record key information, such as author, title, publication date, main opinions and conclusions. This will help you find relevant information quickly when you need it.