Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
2c reliability » ic reliability, 20 reliability, 21 reliability
24 reliability » 2.4 reliability, 4 reliability, 14 reliability
2 reliability » 3 reliability
9 reliability » 3 reliability, 4 reliability
5 reliability » 3 reliability
2c safety » 2 safety, 22 safety, 23 safety
10 safety » _ safety, 5 safety, 4 safety
a safety » _ safety, a safe

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 (((24 reliability) OR (2 reliability))))) OR (((9 reliability) OR (5 reliability))))%((2c safety) OR (((10 safety) OR (a safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22quality control%((((2c reliability) or (((24 reliability) OR (2 reliability))))) or (((9 reliability) or (5 reliability))))%((2c safety) or (((10 safety) or (a safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %22quality control%((((2c reliability) or (((24 reliability) OR (2 reliability))))) or (((9 reliability) or (5 reliability))))%((2c safety) or (((10 safety) or (a safety)))) and risk%22*.