As this thread highlighted, equal weight is given to all products matching the search keywords ... whether the match was found in the product's name, model-number, manufacturers name, meta tags or (if requested) its description. As @lloyd_borrett indicated in that thread, that can mean that products whose names match those keywords might wind up "below the fold" -- where they're probably the most relevant!

This simple plugin updates the SQL query used on the "Advanced Search Results" page, giving a higher priority to those products whose names match the keywords.

Note: Since this plugin makes use of the auto-loaded observers feature introduced in Zen Cart v1.5.3, the plugin will operate properly only on Zen Cart versions v1.5.3 and later.

I'll be submitting to the Plugins shortly and will update this thread with the download link once I've got it.