Perhaps you should try some spelling variations:
forquality control » quality control, _quality control, qouality control
byquality control » quality control, _quality control, quality controls
2c reliability » 2 reliability, 20 reliability, ic reliability
24 reliability » 2.4 reliability, 2 reliability, 4 reliability
5 reliability » 3 reliability
2c safety » 23 safety, 25 safety, 21 safety
22 safety » 5 safety, 4 safety, 3 safety
12 safety » 10 safety, 11 safety, 1 safety
2 safety » 5 safety, 4 safety, 3 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: %((forquality control) OR (byquality control))%((((2c reliability) OR (24 reliability))) OR (5 reliability))%((((2c safety) OR (2 safety))) OR (((22 safety) OR (12 safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((forquality control) or (byquality control))%((((2c reliability) or (24 reliability))) or (5 reliability))%((((2c safety) OR (2 safety))) or (((22 safety) or (12 safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((forquality control) or (byquality control))%((((2c reliability) or (24 reliability))) or (5 reliability))%((((2c safety) OR (2 safety))) or (((22 safety) or (12 safety)))) and risk%22*.