The Tasks Without TimeSheet Entries selection item in the Task Time Entry Status filter on project reports will list only the tasks that does not have any time entries committed against it. For example, if time has been submitted against a project 'Web Design' earlier in any of the previous timesheets, it will not display the time information in the report.

Note: If time has been submitted against the Project 'Web Design' earlier and would still like to see 0 hours against the project then, enter 0 hours against the project.