When in the Manage Jenkins page (e.g. http://localhost:8080/manage/) there is a search box that states you can Search Settings.

However this does not infact appear to search settings, but merely searches the Manage Jenkins page.

Steps to Reproduce

Start Jenkins and login as an administrator
Go to ${JENKINS_ULR}/manage
in the "Search Settings" box enter various terms like "Usage Statistics" or "Proxy"

Expected Results

Configuration (Settings!) items are found and you can go click to go to the relevant section in the relevant Management Link.

Actual Results

No matches are found

Notes

It appears as though the search only searches the current page (or the names of Management Links, and does not infact search any setting).