Search or Filter Records from Module

Hi All,

Im creating a live search module for our wordpress website and want users to be able to search our sugarcrm knowlege base module

I was wandering if anyone had used filter or search and if they had noticed any performance  differences in the two. I wan to create this as a live search so results will change as a user types 

reading https://support.sugarcrm.com/Documentation/Sugar_Developer/Sugar_Developer_Guide_7.9/Integration/Web_Services/v10/Endpoi… 

it says module has been added to the search endpoint put when i add this to my GET request  i get 

{
    "error": "no_method",
    "error_message": "Could not find a route with 2 elements"
}

 my query is 

http://mc.sugarcrm.localdev/rest/v11/search/KBContents?q=test&max_num=5&offset=0&fields=&order_by=&favorites=false&my_it… 

we use sugar cloud  Ent v9