In our WordPress admin, you don’t index private ad draft post. If your post is public and you want to filter it, you can do post id filtering under Option tab.
If the article is written from right to left, then search results should display right to left
Simply add those “query keyword” as tag to your post or product and you can give a higher field weight for tag under Record > Result Ranking under admin to move the post/product to the top of the search result.
The number of documents will be 3 times as each post/document has 3 different language versions.