I would like to provide some constructive criticism regarding the Search option as it pertains to separable verbs in German.
In lesson 21.5, we are presented with the noun “das Anschließen”. I recalled that I encountered this nominalised verb in a previous lesson as a transitive verb, but was unable to find it in the Search option using “anschließen”, but rather as “schließen”, as this separable verb appeared in Lesson 21.1 as follows: “Schließen Sie bloß das blaue Netzwerkkabel an.”
I recommend that this be corrected in order to locate this verb by its infinitive form (anschließen) instead of a portion of the separable verb (schließen), which has a different meaning.
Beyond this specific example, it would be advisable to check whether this case occurs with other separable verbs presented in the course.