Search Filter On External.php

Hi David, hope all well.

This might be easier if I email you the url so you can see whats happening, but I'll try and explain here.

Basically I have a drop-down advanced filter for users on my site.

So for example a user can select the 'material' of product they want from a pre-defined list.

My issue is when they select "gold" from the list and submit the form the results are displaying not only gold products but also 'white gold' products too. It is the 'white gold' products I do not wish to display.

Ideally I would be able to insert some code that would say, if user selects "gold" then filter out any products with 'white gold' in their product title OR description.

Is anything like this possible?

On submission of the form my search url is as so:

http://www.mysite.co.uk/search/?sort=relevance&material=Gold&minPrice=10&maxPrice=80