Google Scholar searches across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites.
How to access UW Restricted materials in Google Scholar: Before searching in Google Scholar, make sure to install the UW Libraries Proxy Bookmarklet. The bookmarklet lets you log into the proxy without having to browse from the UW Libraries website. More information can be found this webpage:
For more search tips, take look at the UW Libraries Research Guide on Google Scholar.