Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
ic reliability » 2 reliability, 5 reliability, 9 reliability
4 reliability » 3 reliability, 2 reliability, 5 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%((4 reliability) OR (ic reliability))%2 safety AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %22quality control%((4 reliability) or (ic reliability))%2 safety and risk%22*.