Unlike the text pages of this website this works only, if Your Browser supports Frames and if You do not deactivate Javascript ="active scripting". After the frame above is built up and the input in the line is possible (after around 1-2 minutes), You may enter one or more words, and click the button
From the showed links you come to the begin of the page found. From here You may search - with the function edit / search of Your Browser - for the places, where the searched word appears.