First, China HowNet

1, quick search, we just need to enter the key words we are looking for and click "quick search" to find the relevant literature.

2. Standard retrieval: In standard retrieval, the retrieval process is standardized into three steps. First, enter the search control conditions such as time, funding fund, literature source and author, and then enter the search conditions such as full text, title, subject and keywords; Finally, the retrieval results are grouped and sorted, and the final result is obtained by repeatedly screening and modifying the retrieval formula.

3. Citation retrieval, starting from the retrieval of reference documents, according to the citation relationship of documents, find the cited documents. All the documents in the citation database have citation or cited relationships with other documents, and citation retrieval is to retrieve documents through these relationships.

4. Sentence retrieval. Sentence retrieval is to find a sentence that contains two keywords at the same time through two keywords input by users. Because sentences contain a lot of factual information, searching sentences can provide users with answers to questions about facts.

Second, Wanfang database resource system

1, search the title of the paper.

Is to copy and paste the title of the paper into the search bar. Make sure the tab at the top of the search bar is Academic Papers, and then click Search.

2. Search for papers by searching journals.

If the title of the article is not very popular, you can search directly by searching for papers; If the title of the article is popular, you can search it by searching journals.