Search a SINGLE fieldkey with multiple checkbox's

Hi I was wondering if anyone could point me in the right direction of searching a single field key but with multipipe options. I have a #MultipileCheckbox that I’m using to obtain the search query. It works for one selection but as soon as there is more than one selection it returns no items.

let value = $w('#categoryCheckbox').value;
 let string = ($w('#categoryCheckbox').value).toString();
    dataQuery = dataQuery.contains('coursesCategory', string);

The event handler has multiple options and I have left this out to minimise the code.

Thank you!

Check do [doc](doc

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[Introduction - Velo API Reference - Wix.com](doc
Introduction - Velo API Reference - Wix.com

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The queries are promises.

Thanks for the link. I’m very happy with wix Data API just not for the above problem…

@stephenmccall
Were you searching for something like this???
https://www.media-junkie.com/pflegeservice

How to use this INTERACTIVE-EXAMPLE?

Your DATA-SETUP for this example: (first setup the preset, like shown below!)

-click EXIT.
-choose the setted-up PRESET (PRESET-2)
-see results
-have fun :grin:

You have 2-REPEATERS of choice: (“repeater1” + “repeater2”) :wink:

EDIT:
For you prepared DATABASE:

Could you fix your problem ?