[{country:"United States",personName:"John",level:"Average",},{country:"United States",personName:"Rina",level:"Begginer",},{country:"Germany",personName:"John",level:"Average",}]

db.collection.aggregate([{$match:{country:{$in:["United States","Germany"]},$or:[{country:{$ne:"United States"}},{country:{$eq:"United States"},level:{$ne:"Begginer"}}]}}])