Perhaps you should try some spelling variations:
forquality control » quality control, _quality control, byquality control
22quality control » quality control, _quality control, byquality control
21 reliability » 2 reliability, 1 reliability, 11 reliability
24 reliability » 2.4 reliability, 2 reliability, 4 reliability
ic reliability » 3 reliability, 5 reliability, 2 reliability
23 safety » 2 safety, 22 safety, 5 safety
13 safety » 10 safety, 11 safety, 1 safety
3 safety » 5 safety, 4 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 (forquality control))%((((21 reliability) OR (24 reliability))) OR (ic reliability))%((23 safety) OR (((13 safety) OR (3 safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22quality control) or (forquality control))%((((21 reliability) or (24 reliability))) or (ic reliability))%((23 safety) or (((13 safety) OR (3 safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((22quality control) or (forquality control))%((((21 reliability) or (24 reliability))) or (ic reliability))%((23 safety) or (((13 safety) OR (3 safety)))) and risk%22*.