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
2c reliability » 2 reliability, 20 reliability, 29 reliability
24 reliability » 2 reliability, 14 reliability, 20 reliability
9 reliability » 5 reliability, 2 reliability
3 reliability » 5 reliability
22 safety » 12 safety, 5 safety, 4 safety
2 safety » 5 safety, 4 safety, 3 safety

Try widening your search to All Fields.

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))%((((2c reliability) OR (((24 reliability) OR (2.4 reliability))))) OR (((9 reliability) OR (3 reliability))))%((2 safety) OR (22 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22quality control) or (byquality control))%((((2c reliability) or (((24 reliability) OR (2.4 reliability))))) or (((9 reliability) or (3 reliability))))%((2 safety) or (22 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((22quality control) or (byquality control))%((((2c reliability) or (((24 reliability) OR (2.4 reliability))))) or (((9 reliability) or (3 reliability))))%((2 safety) or (22 safety)) and risk%22*.