Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, forquality control
byquality control » quality control, _quality control, forquality control
2.4 reliability » 2.6 reliability, 5.4 reliability, 2.2 reliability
22 safety » 2 safety, 12 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) OR (byquality control))%2.4 reliability%22 safety AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((22quality control) or (byquality control))%2.4 reliability%22 safety and risk%22*.