Perhaps you should try some spelling variations:
forquality control » quality control, _quality control, qouality control
byquality control » quality control, _quality control, quality controls
21 reliability » 2 reliability, 1 reliability, 11 reliability
ic reliability » 5 reliability, 2 reliability, 7 reliability
22 safety » 2 safety, 5 safety, 4 safety
12 safety » 2 safety, 10 safety, 11 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: %((byquality control) OR (forquality control))%((21 reliability) OR (ic reliability))%((22 safety) OR (12 safety)) AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((byquality control) or (forquality control))%((21 reliability) or (ic reliability))%((22 safety) or (12 safety)) and risk%22*.