Discovery does not:
If you need to conduct a comprehensive search, for example for a literature review, you should search individual databases as well as Discovery.
To access databases, click the Find Individual Databases & E-Journals link at the top of the page.
Choose a search mode:
The Content Provider limiter, at the bottom left of the search results screen, can be used to establish which sources results have been retrieved from.
Click the Show More to see the full list, sorted by Hit Count or Name.
Tick the checkbox next to one or more content provider and click the Update button to narrow your search to results from those providers.