Improving nlu threshold?

Hey guys! So I have some set of questions in my bot and whenever I deviate from a question just a bit it gives same answers or like if a question matches somewhat to the question asked it still runs the action. for eg.

Q.1 -Who is online today in my team?


who is playing today on Indian cricket team?( I know the question is lame but get my point? xD)

So still running my action?

How can I solve this? By increasing the threshold which is already 0.7 and any further increase is giving problem in actual questions.