Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
ic reliability » 2 reliability, 9 reliability, 8 reliability
4 reliability » 3 reliability, 2 reliability
5 reliability » 3 reliability, 2 reliability
2 safety » _ safety, a safety, 5 safety

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %22quality control%((((2((4 reliability) OR (5 reliability))) OR (((4 reliability) OR (5 reliability))))) OR (ic reliability))%2 safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22quality control%((((2((4 reliability) OR (5 reliability))) or (((4 reliability) OR (5 reliability))))) or (ic reliability))%2 safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %22quality control%((((2((4 reliability) OR (5 reliability))) or (((4 reliability) OR (5 reliability))))) or (ic reliability))%2 safety and risk%22*.