Filter Accentuation Issue

I’m facing problems when I write words with accentuation, the filter doesn’t work. Nothing happens.
Any idea how to fix this?
The code that I’m using is:

import wixData from 'wix-data';

let lastFilterTitle;

let debounceTimer;
export function iPesquisa_keyPress(event, $w){
 if (debounceTimer) {
        clearTimeout(debounceTimer);
        debounceTimer = undefined;
    }
    debounceTimer = setTimeout(() => {
        filter($w('#iPesquisa').value);
    }, 2);
}

function filter(title){
 if (lastFilterTitle !== title) {
 let newFilter = wixData.filter();
 if (title)
            newFilter = newFilter.contains('title', title).or(newFilter.contains('autor', title));
        $w('#dataset1').setFilter(newFilter);
        lastFilterTitle = title;
    }
}