And in case it's useful for debug, ken, substituting the appropriate HTML Entity
and enclosing the search in DOUBLE quotes works in harka's log.
So any umlauted letter gets replaced with the proper HTML Entity
(find letter, click, get Entity from top), ä in this case. An encoding/decoding issue ... maybe encode before stashing into the DB? NOT encode? :) UTF-8 site & DB settings? Fun!