Version:           4.2.00 (KDE 4.2.0) (using 4.2.00 (KDE 4.2.0), Kubuntu packages)
Compiler:          cc
OS:                Linux (x86_64) release 2.6.27-12-generic

I tried searching (CTRL-F which places the text search "dialog" at the bottom of the Konqueror window) for "BevelBorder" (and for testing for a number of other terms) in the standard Java API docs (which uses a frameset) and always only got a "Not found" (though all terms *did* exist in the contents). I tried clicking the different frames (thinking only the "active" frame might be searched) but that did not make any difference, still only "Not found". Searching in simple pages seems to work ok.