Virtual agent - topic discovery

[js20]

I am asking user what he would like to do and search KB, if he is not satified then I want to search best topic match using nlu and present him this topic he could click or go further in flow asking more question.

how to script topic search (topicDiscovery  doing switch I just want to show topic name.

[js20]

Ideally maybe to show more topics if it matches and then user can pick the best for him

[SaurabhGidwani]

Hello @js20  You can use 
vaSystem.topicDiscovery()
in your script block to trigger topic discovery