If you'd like to pass the search request data to GA, you'll need to do it using Google Tag Manager. First, you need to link your Google Analytics property with Google Tab Manager - follow Google's instructions.
After you're done with previous step, please follow the next steps:
Step 1. You need to create a GTM user-defined variable for the JavaScript code:
Variables -> User-Defined Variables -> New -> Variable Configuration -> Custom JavaScript
and paste the following code:
function(){ return easysearch.curIndex.replace(/,$/, '').replace(/^,/, '-,').replace(/,$/, ',-').replace(/,,/, ',-,').replace(/,/g, ' / '); }
Step 2. Then, you need to create the Click trigger for the "Search" button and the "Google Analytics" tag of the "Event" track type and set the variable you created as Action.
Please try to perform the steps described and let us know if you have any further questions or difficulties via email support@nexusmedia-ua.com