Query for Current Elements Attached to an Employee Assignment

Hi All, i'm trying to write a query to get the Current Elements Attached to an Employee Assignment, here's what i got so far:

select  ety.element_namefrom    per_assignments_x pax    ,   per_assignment_status_types pst    ,   PAY_ELEMENT_ENTRIES_X PEEF    ,   pay_element_types_X ety    where   pax.assignment_id = <<Assignment ID>>and     ety.element_type_id = PEEF.element_type_iDand     pax.assignment_status_type_id = pst.assignment_status_type_idand     PEEF.ASSIGNMENT_ID = pax.ASSIGNMENT_IDand     PEEF.effective_start_Date   <= sysdateand     PEEF.effective_end_Date     >= sysdateand     pst.user_status = 'Active Assignment'and     pax.assignment_type = 'E';

However, the employee I'm querying has 15 Elements attached, but the query data set returns 20 records.