Besides searching for Sun product documentation from the docs.sun.com web site, you can use a search engine of your choice by typing the following syntax in the search field:
search-term site:docs.sun.com
For example, to search for Directory Server, type the following:
"Directory Server" site:docs.sun.com
To include other Sun web sites in your search, such as java.sun.com, www.sun.com, and developers.sun.com, use sun.com in place of docs.sun.com in the search field.