There are at least 4 cases where the processing can be greatly improved.
Case 1: When processing a non-English Bible without a Reverse-interlinear, I am still offered the option of Bible Word Study although the only things built are Topic and Textual Searches. Note the Topic is built from English:lust rather than German:lust and therefore would often be erroneous. I would prefer (a) that the Topic section not be built when the source language is not English (or the variant of this that applies to the Logos structure), (b) that the Bible Word Study not be offered when the only section available is the Textual Search section and (c) if the BWS must be offered, the Textual Searches include the language of origin.

Case 2: This case shows the BWS as requested from the screen shown above. Note the Topic Section built off the English rather than the German. Running the second Textual Search option (on the NRSV) I get completely erroneous results because the search argument is simply "lust" rather than the correct "German:lust".

Case 3: Modifying the Search to the correct search argument "German:lust" and searching all resources fails to find my starting point, the Luther Bibel, because the language parameter ignores the metadata language and searches only for languages tagged within non-German resources. The metadata language should be respected and reflected in the search results. My bad - I had Match Case set from yesterday's testing.

Case 4: In the Luther Bibel, when I double click to obtain a dictionary definition the metadata defining the language is ignored and the German:lust produces results for the English:lust. Dictionary lookup should respect the language of the select word whether defined by metadata or internal tagging. Edit: Bradley identified this as an error in the dictionary rather than the Search.

This is in no way limited to German. I actually started in Finnish. However, I chose German as the language of illustration in hopes that some of the German speaking Logos users could expand on the issues.