Limit results to specific post IDs only

Filter posts (or CPT) which user can’t access

Restricting results by user Groups using the Groups plugin by itthinx

Limiting results to specific posts by parent ID

Limit results to current page children

Excluding posts or CPT by parent ID(s)

Searching posts, pages (or any CPT) by specified keywords only, nothing else

Showing the post type name in result title or content

Searching within given categories/taxonomy terms only

Search only in the same category as the current post or page (single page)

Search only within the current category (or any taxonomy) archive