Checking for multiple strings at one time within a dataset?

Hello,

Twine newbie here -- so please excuse the noobiness of the question --

I want to be able to check to see if a certain combination of strings exist within a dataset, and output something specific based on a variety of combinations. The following obviously doesn't work:

(if:$quest contains "stringA", "stringB")[You have both strings.]

Can anyone point me toward the proper function to make this happen?

Thanks so much!