Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
24 reliability » 2.4 reliability, 2 reliability, 4 reliability
ic reliability » 2 reliability, 5 reliability, 9 reliability
2c safety » 2 safety, 22 safety, 25 safety
23 safety » 3 safety, 2 safety, 13 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%((24 reliability) OR (ic reliability))%((2c safety) OR (23 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22quality control%((24 reliability) or (ic reliability))%((2c safety) OR (23 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %22quality control%((24 reliability) or (ic reliability))%((2c safety) OR (23 safety)) and risk%22*.