Database

[{"invoice":{"data":[{"name":"VOUCHERNUMBER","value":"59302311"},{"name":"VOUCHERDATE","value":"2020-02-20"}]}},{"invoice":{"data":[{"name":"VOUCHERNUMBER","value":"59112389"},{"name":"VOUCHERDATE","value":"2020-02-20"}]}},{"invoice":{"data":[{"name":"VOUCHERNUMBER","value":"59302378"},{"name":"VOUCHERDATE","value":"2020-02-11"}]}}]

Query

db.collection.find({"invoice.data":{"$elemMatch":{"name":"VOUCHERNUMBER","value":{$regex:"11"}}}})

Result