Search only in title

Hello

you can try this code. WARNING, probably you should tweak it.
thanks, Alex

add_filter( "wpo_custom_product_search", function($results,$query_args,$term) {
 global $wpdb;
 $term = esc_sql($wpdb->esc_like($term));
 $results = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE post_type='product' AND post_status='publish' AND post_title LIKE '%{$term}%' ORDER BY post_title LIMIT 25");
 return $results;
},10,3);

Thanx a lot.
And when i want to search in title and also in sku?

Updated version (+ SKU)

add_filter( "wpo_custom_product_search", function($results,$query_args,$term) {
 global $wpdb;
 $term = esc_sql($wpdb->esc_like($term));
 $results = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE post_type='product' AND post_status='publish' AND post_title LIKE '%{$term}%'  
                           OR ID IN (SELECT post_id FROM $wpdb->postmeta WHERE meta_key='_sku' AND meta_value LIKE '%{$term}%' )
                           ORDER BY post_title LIMIT 25");
 return $results;
},10,3);

Perfect! Thanx.

you’re welcome