fulltext boolean search not displaying correct restults

[aidin]

How do i get fulltext boolean search to locate results based on partial words. For example i am searching for +protein +bar but i also want results for anything that contains the word bar such as bars

$keywords = $_GET['query']; 
		// add + to the first keyword 
		$keywords = '+' . $keywords; 
		// replace ' ' with ' +' so you add a + to every keyword 
		$keywords = str_replace(' ', ' +', $keywords);

	$query = "SELECT products_id as prodid,
							products_name as name,
							manufacturers_id as manufacturers_id,
							products_price as price,
							products_msrp as msrp,
							products_date_added as pda,
							products_status as status,
							products_sku as sku,
							products_weight as weight, MATCH(products_name, products_description, products_keywords, products_notes) 
           AGAINST ('$keywords' IN BOOLEAN MODE) AS score FROM products
           WHERE MATCH(products_name, products_description, products_keywords, products_notes) 
           AGAINST ('$keywords' IN BOOLEAN MODE) ORDER BY score DESC"; 

	$result = mysql_query($query) or die("Error in $query!");

OUTPUT:
SELECT products_id as prodid, products_name as name, manufacturers_id as manufacturers_id, products_price as price, products_msrp as msrp, products_date_added as pda, products_status as status, products_sku as sku, products_weight as weight, MATCH(products_name) AGAINST ('+protein +bar' IN BOOLEAN MODE) AS score FROM products WHERE MATCH(products_name) AGAINST ('+protein +bar' IN BOOLEAN MODE) ORDER BY score ASC

[Roger_Ramjet]

Well to find bars you just use the wildcard operator bar*

But bar is only 3 letters so unless you have modified the minimum length parameter it will not be matched on it's own anyway.