intercepting search results

I have a number of common search phrases that visitors enter on the catalog search tool on my site. Is there a way for me to hijack the results when the phrase matches one of the predefined phrases, and redirect to any page I want?

For example, a search for **trap bar ** brings up many irrelevant results, and the only trap bar I have is on page 6 of the results. I want to bring up that item. Or with an **olympic barbell **search, I want to bring up the olympic bars category. And so on.

How would I go about making this mod?

You could try working with a notifer/observer to hook into the 'NOTIFY_HEADER_START_ADVANCED_SEARCH_RESULTS' notifier point, and modify the $_GET['keyword'] values after some pre-parsing. Or hard-code your changes inside the /includes/modules/pages/advanced_search_result/header_php.php file.