Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
ic reliability » 7 reliability, 8 reliability, 11 reliability
2 reliability » 3 reliability
5 reliability » 3 reliability
2c safety » 22 safety, 25 safety, 21 safety
23 safety » 3 safety, 13 safety, 22 safety
2_ safety » 22 safety, 25 safety, 21 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%((((2 reliability) OR (5 reliability))) OR (ic reliability))%((((2c safety) OR (((23 safety) OR (2 safety))))) OR (((2_ safety) OR (_ safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22quality control%((((2 reliability) or (5 reliability))) or (ic reliability))%((((2c safety) or (((23 safety) OR (2 safety))))) or (((2_ safety) or (_ safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %22quality control%((((2 reliability) or (5 reliability))) or (ic reliability))%((((2c safety) or (((23 safety) OR (2 safety))))) or (((2_ safety) or (_ safety)))) and risk%22*.