Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
21 reliability » 1 reliability, 11 reliability, 20 reliability
2c reliability » 20 reliability, 24 reliability, 26 reliability
22 reliability » 2.2 reliability, 12 reliability, 20 reliability
ic reliability » 5 reliability, 7 reliability, 8 reliability
3 reliability » 5 reliability
2 reliability » 5 reliability
2c safety » 25 safety, 21 safety, 24 safety
22 safety » 12 safety, 5 safety, 4 safety
23 safety » 3 safety, 13 safety, 5 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%((((((((2c reliability) OR (22 reliability))) OR (21 reliability))) OR (((2 reliability) OR (3 reliability))))) OR (ic reliability))%((((2c safety) OR (22 safety))) OR (((23 safety) OR (2 safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22quality control%((((((((2c reliability) OR (22 reliability))) or (21 reliability))) or (((2 reliability) or (3 reliability))))) or (ic reliability))%((((2c safety) or (22 safety))) or (((23 safety) or (2 safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %22quality control%((((((((2c reliability) OR (22 reliability))) or (21 reliability))) or (((2 reliability) or (3 reliability))))) or (ic reliability))%((((2c safety) or (22 safety))) or (((23 safety) or (2 safety)))) and risk%22*.