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