WebberZone

You’re welcome!

I don’t know the language, but I can see the lack of relation. Are the posts better without the extra piece of code?

On all my installs, this pulls in every sub-category as well. Could you please do a clean deinstall and reinstall of the plugin.

You can change this in the Settings page under Thumbnail

It would prioritise the three keywords, but it would never be able to return only those since it doesn’t match exactly but approximately.

What PHP error did you get?

Can you get into the meta tables in there which has _yoast_wpseo_focuskw.

You should find the meta_key and meta_value entries in there.

The part of the code might be something like this:

function crp_bsearch_posts_where( $where ) {
	global $wpdb, $post;
	$string = WPSEO_Meta::get_value( 'focuskw', $post->ID );

	return $where . "
		AND ( $wpdb->postmeta.meta_key = '_yoast_wpseo_focuskw' AND $wpdb->postmeta.meta_value = {$string} )
	";
}
add_filter( 'crp_posts_where', 'filter_crp_posts_where' );

The best option is to use the API.

https://gist.github.com/ajaydsouza/968b24a052e858bf8926

You’ll need to do an array_merge with the post IDs you want with the $posts variable