[{companyId:"companyId1",language:"en",country:"GB",template:"...."},{companyId:"companyId2",language:"es",country:"ES",template:"...."},{companyId:"default",language:"default",country:"ES",template:"...."}]

db.collection.aggregate([{$facet:{query1:[{$match:{companyId:"companyId1",language:"en"}},{$project:{_id:0}}],query2:[{$match:{companyId:"companyId2",language:"es"}},{$project:{_id:0}}],query3:[{$match:{companyId:"default",country:"ES"}},{$project:{_id:0}}],}}])