Perhaps you should try some spelling variations:
byquality control » quality control, forquality control, quality controls
_quality control » quality control, quality controls, qouality control
24 reliability » 2.4 reliability, 4 reliability, 14 reliability
2 reliability » 3 reliability, 5 reliability
2c safety » 2 safety, 25 safety, 21 safety
22 safety » 2 safety, 12 safety, _ safety
23 safety » 2 safety, 13 safety, _ safety
3 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: %((_quality control) OR (byquality control))%((24 reliability) OR (2 reliability))%((((((2c safety) OR (22 safety))) OR (23 safety))) OR (3 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((_quality control) OR (byquality control))%((24 reliability) or (2 reliability))%((((((2c safety) or (22 safety))) or (23 safety))) or (3 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((_quality control) OR (byquality control))%((24 reliability) or (2 reliability))%((((((2c safety) or (22 safety))) or (23 safety))) or (3 safety)) and risk%22*.