Keep periods inside of words in Relevanssi.
Snippet Type
Execute on Child Sites
Snippet
add_filter( 'relevanssi_remove_punctuation', function( $a ) {
$a = preg_replace( '/(\w)\.(\w)/', '\1\2', $a );
$a = preg_replace( '/(\w)\.(\w)/', '\1\2', $a );
return $a;
}, 8 );