Wip literature retrieval is also free, and you can directly retrieve it by logging in to the website. Small partners who need to obtain the full text can enter from the institutional entrance of ordering the database. The following figure shows the interface after logging into VIP database. Different versions may be different, but the retrieval function is similar. In the advanced retrieval state, click the retrieval tab at the top of the page to enter the retrieval page, and you can directly enter the retrieval type in the retrieval box to realize complex retrieval strategies.
In the advanced retrieval page, multiple retrieval conditions can be connected by logical related words such as AND or NOT to realize more complex retrieval strategies. You can connect search words and their synonyms with "+"in the input box. Click Synonym Extension to display synonyms of search terms provided by the system. Select the synonyms you want, and then click OK to display them directly in the search box.