563393 Modify php shopping cart search functionality

Hello, We are using shopping cart cs-cart 135sp4 and we want to optimize the search ability of the cart. At this moment we are using the default search functionality of the cart. For small amount of products the search is ok. If you have more than 2000 products, the search results are pure. We now exactly to which tables we want the search engine to search so you will have very speicific instructions. We want the search engine to search in product name, product features, manufacturer and search words (nowhere else). So, we are looking for someone who will help us optimize this search ability. Thank you