Filtering dataset (using "setFilter( )") doesn't work

I am trying to implement very simple filter using Velo Code but it doesn’t work. Could someone help me with this issue, please?

Here is my function

$w.onReady(function () {
    let jobTitle = 'Product'
    $w('#Filter').text = jobTitle;
    $w('#myDataset').setFilter(wixData.filter().contains('Job Title', jobTitle))
});

Based on this filter the dataset should return 2 records but it returns nothing.

Here is screenshot of data in the Collection. So the data are valid.

The “Job Title” field will be jobTitle. So it would look like this -

$w.onReady(function () {
    let jobTitle = 'Product'
    $w('#Filter').text = jobTitle;
    $w('#myDataset').setFilter(wixData.filter().contains('jobTitle', jobTitle))
});