For titles with both a $a title and a $b subtitle. If the $a is an exact match for a search query that title should also be considered an exact match and boosted in the same way to the top of the search results.

When searching a word/phrase, results with an exact match of the search term(s) in the title of a search result should appear higher in search results than those with a partial match in the title due to 'stemming'. Example: Staff wrote in that they were searching for the book "Resolute" by Benjamin Hall and only the econtent was appearing. After going through several pages, we found the record for the book on Page 10 of the search results, after several titles with either the word "Resolution" or "Resolutions" in the title, and after some titles without the word "resolute" or anything close to it in the main title. Today, while writing this, the book result has jumped to Page 11 of the search results - even worse. When using the Title index to narrow the search, it is slightly better, but not much, as the book appears on Page 4 of search results, still well after other results without the search term in their titles. (We were told this is expected behavior due to the current search algorithm, hence this enhancement request.)