var assert = require('assert'),
    regecent = require('regecent');
 
const PRODUCT_NAME = regecent(/(maçã|apple)/gim),
      RESULT_REGEX = /(m[aãàáâÂAÁÀ]ç[aãàáâÂAÁÀ]|[aãàáâÂAÁÀ]ppl[eẽèéêÊEÉÈ])/;
 
assert.deepEqual(PRODUCT_NAME, RESULT_REGEX);
 
var cursor = db.collection('products').find({
  name: {
    $regex: PRODUCT_NAME
  }
});