In the Web Portal you are able to search Active Jobs, Recurring Job Profiles, Completed jobs, and Deleted Jobs.
To search for a job in the Web Portal > Jobs > View Jobs.
When searching for a Job in the Web Portal you can use the Smart Tables to customise and filter down your search.
To search for a Job in the App in the Job tab, you can use the search to filter jobs, noting that the jobs list is only jobs assigned to you as a user or are a queued job.