Instead of getting a list of results, you'll see a colour-coded display of the results that can be drilled down into. From the DeweyBrowser site:
The OCLC Research DeweyBrowser enables you to search and browse collections of library resources organized by the Dewey Decimal Classification (DDC). The DeweyBrowser presents search results at three levels, the main summaries. These three summaries correspond to the main structure of Dewey and provide a broad overview of the scheme. The interface provides the option of displaying the summaries in several languages, including English, French, German, Spanish, and Swedish
Our Dewey blogging colleague, Jonathan Furner, an Assistant Editor for the DDC, does a write-up at 025.431: The Dewey Blog .