'SpecialSearchResults': Called before search result display
$term: string of search term
-$titleMatches: empty or SearchResultSet object
-$textMatches: empty or SearchResultSet object
+&$titleMatches: empty or SearchResultSet object
+&$textMatches: empty or SearchResultSet object
'SpecialSearchResultsPrepend': Called immediately before returning HTML
on the search results page. Useful for including an external search