[{"_id":1,"array":[{"name":"name1","nestedArray":[{"key":"key1","value":"value1"},{"key":"key2","value":"value2"}]},{"name":"name2","nestedArray":[{"key":"key1","value":"abc"},{"key":"key2","value":"value2"}]},{"name":"name2","nestedArray":[{"key":"key1","value":"abc"},{"key":"key2","value":"value2"},{"key":"key1","value":"xyz"}]}]}]

db.collection.aggregate([{$unwind:"$array"},{$match:{"array.nestedArray":{$all:[{"$elemMatch":{key:"key1",value:"abc"}},{"$elemMatch":{key:"key2",value:"value2"}}]}}},{$group:{_id:"$_id",array:{"$push":"$array"}}}])