I have data in my db in the form:

{term: "Hello how"}, {term: "whoever"}, {term:"who"}

I have an array of strings like:

["Hello how are you", "whoever has done this please let me know"]

I want to write a query in mongo db that will fetch all the substrings for these array of strings in the fastest way.

So the result I’m expecting for this is [“Hello how”,”whoever”]

I have tried with regex:

Hello|how|are|you|whoever|has|done|this|please|let|me|know

but this did not work because this matched individual words