I would like to understand how $elemMatch is implemented (logically speaking) to explain the following simple test case ;

```
db.testElemMatch.insertMany([
{ tableau: [ "1", "2" ] },
]);
//The first 2 commands returns the same result (the expected document)
//so does that mean that elemMatch search for satisfying each crtiteria with a differnet array element?
//.. regardless of query order
db.testElemMatch.find( { tableau : {$elemMatch: {$eq:"1", $eq:"2"} } } )
db.testElemMatch.find( { tableau : {$elemMatch: {$eq:"2", $eq:"1"} } } )
//Why that command returns the expected document as well since the first criteria is NOT satisfy
db.testElemMatch.find( { tableau : {$elemMatch: {$eq:"5", $eq:"2"} } } )
//Why the criteria order affect the result here?
db.testElemMatch.find( { tableau : {$elemMatch: {$eq:"2", $eq:"5"} } } )
```