relevanssi_hits_filter - SERP Analysis

https://www.relevanssi.com/user-manual/filter-hooks/relevanssi_hits_filter/

https://wordpress.org/support/topic/how-to-use-relevanssi_hits_filter-when-searching-without-a-search-term/

https://www.relevanssi.com/tag/relevanssi_hits_filter/

https://gist.github.com/d2c8c7f36c1b7ef753d3e35ffe1bed50

https://gist.github.com/msaari/c1004e627d91f4a0f3b4371c75a2e5ee

https://savvy.co.il/en/blog/wordpress-development/relevanssi-hooks-filters/

https://wordpress.stackexchange.com/questions/104706/search-filter-triggered-sort-by-custom-post-type

https://stackoverflow.com/questions/17712388/sort-wordpress-search-by-relevance

https://wordpress.org/support/plugin/relevanssi/page/2/

https://zach-adams.com/2014/12/adding-sticky-results-relevanssi/

https://wordpress.stackexchange.com/questions/193850/separating-search-results-by-post-type

http://www.wpquestions.com/Sort_Search_by_Post_Type/9520.html

https://davidauble.com/2019/03/05/improving-wordpress-search-results-with-relevanssi.html

https://keithdevon.com/allowing-null-search-relevanssi/

https://stackoverflow.com/questions/67646064/wordpress-query-relation-and-with-meta-query-and-tax-query

https://www.mikkosaari.fi/kirjavinkit-fin-hakutulossivun-parantaminen/

https://shop.effectio.org/product/relevanssi-premium/

https://soninow.com/wp/plugins/relevanssi/

https://babia.to/resources/relevanssi-premium-the-wordpress-search-plugin-you-need.5905/update/89171/