I am using Drupal 7.43 and core search module.
I use "Search: Search Terms" for filter criteria and "Search:Score" Sorting criteria in my view to sort my results according to relevance.
But, for example if I search for text "drupal view search" it prioritize some node containing word "drupal" 5 times over a node containing all the text I entered, "drupal view search".
I want to sort my results such that, prioritize nodes that have title as the text I entered,then nodes that have any of the words in title, then nodes that have that text in the body.
How can I customize and add more functionality to the content ranking part in this page /admin/config/search/settings?