Database
[{"_id":ObjectId("5a934e000102030405000007"),"name":"Asger systems","content":[{"content_id":ObjectId("5a934e000102030405000000"),"placebo":true,"type":"tt"},{"content_id":ObjectId("5a934e000102030405000002"),"placebo":false,"type":"pp"}]},{"_id":ObjectId("5a934e000102030405000008"),"name":"DCCC here it goes","content":[{"content_id":ObjectId("5a934e000102030405000001"),"placebo":false,"type":"cc"},{"content_id":ObjectId("5a934e000102030405000000"),"placebo":true,"type":"Multiple"}]}]
Query
db.collection.find({name:{$regex:"DCCC"},"content.type":"Multiple"})