Need to alter search algorithm to only display AND algorithm results
I am currently working on my new website www.djstractorpartsllc.mybigcommerce.com and the way the site search works is like google using AND, OR & NOT search algorithm and it will make it hard for my customers to find what they are searching for cause it displays results for anything that make each word which in the end makes thousands of results and most are irrelevant to what they would search for. my old site www.djstractorparts.com uses the AND only algorithm i believe. which seems to work best for an eccomerce site. I am looking for a solution to either alter the code within bigcommerce or add some code that forces the server to tie all words together instead of breaking them apart for the results.
heres some of the code:
<form onsubmit="return check_small_search_form()" method="get" action="http://djstractorpartsllc.mybigcommerce.com/search.php">
<label for="search_query"> … </label>
<input id="search_query" class="Textbox pb_payload" type="text" value="" name="search_query" autocomplete="off"></input>
<input class="Button" type="image" src="http://cdn1.bigcommerce.com/r175e9b162a6cfc6d9f37bac4def0e7ae1aca1c4a/templates/Bodybuilding/images/orange/Search.gif"></input>
<p> … </p>