You should be able to put the following in and get what you are looking for:
Search By: Participant Attendance, Field: Activity, Comparison: Equal to, Value: (your ministry) then "add to statement"
Then: Search By: Individual Communication, Field: Type, Comparison: Equal To, Value: Email then "add to statement" make sure that the two statements have "and" in between and then click "Run Search" Make sure you choose the "Run Search" that is *below* your compound statement.
That should give you what you are looking for. I hope it helps!
Lauren