public class SearchQuery 

var search = new SearchQuery()
{
  // Search for all open high priority jobs assigned to users
  Q = "closed=0 AND assignedType='User' AND priority='High'",
  Fields = new List<string> { "jobId", "jobName", "assignedTo", "dueDate" },
  // Sort by job assignment in ascending order and due date in descending order
  SortFields = new List<SortField> 
  { 
    new SortField() { FieldName = "assignedTo", SortOrder = ArcGIS.Desktop.Workflow.Client.Models.SortOrder.Asc },
    new SortField() { FieldName = "dueDate", SortOrder = ArcGIS.Desktop.Workflow.Client.Models.SortOrder.Desc }
  }
};
var jobManager = WorkflowClientModule.JobsManager;
var searchResults = jobManager.SearchJobs(search);
var fields = searchResults.Fields;
var results = searchResults.Results;

var search = new SearchQuery()
{
  // Search for jobs assigned to the current user using the arcade expression '$currentUser'
  Q = "\"assignedType='User' AND closed=0 AND assignedTo='\" + $currentUser + \"' \"",
  Fields = new List<string> { "jobId", "jobName", "assignedTo", "dueDate"},
  // Sort by job name in ascending order
  SortFields = new List<SortField> { new SortField() { FieldName = "jobName", SortOrder = ArcGIS.Desktop.Workflow.Client.Models.SortOrder.Asc }}
};
var jobManager = WorkflowClientModule.JobsManager;
var searchResults = jobManager.SearchJobs(search);
var fields = searchResults.Fields;
var results = searchResults.Results;

var search = new SearchQuery() { Search = "My Search String" };
var jobManager = WorkflowClientModule.JobsManager;
var searchResults = jobManager.SearchJobs(search);
var fields = searchResults.Fields;
var results = searchResults.Results;