lấy lệ 
as a matter of form, for form’s sake, perfunctorily, for the sake of formality [ lấy ] : by, to, for oneself; to take adopt, charge a price; seize; to pick up, take, charge (a price)
[ lệ ] : (1) custom, rule, regulation; (2) tear; (3) to depend on, rely on; servant; (4) to be shy; (5) epidemic; (6) lichee; (7) beautiful; (8) to encourage
Most Common Compounds Set 1:
Most Common Compounds Set 2 :