If you want to look for a job with a specific title, simply put "title:" in front of the job title in the keywords area. While doing a keyword search will often return many results that are similar in nature, doing so can also mean that the search engine will look for it in the description as well (in other words, a search for "customer service manager" may pull listings that have "customer", "service" & "manager" somewhere in the job description that aren't actual Customer Service Manager jobs.

Example using 'Customer Service Manager'