Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
2.4 reliability » 2.6 reliability, 5.4 reliability, 2.2 reliability
2c reliability » 24 reliability, ic reliability, 20 reliability
9 reliability » 3 reliability, 5 reliability
2 reliability » 3 reliability, 5 reliability
2 safety » _ safety, a safety, 5 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 (2.4 reliability))) OR (((9 reliability) OR (2 reliability))))%2 safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22quality control%((((2c reliability) or (2.4 reliability))) or (((9 reliability) OR (2 reliability))))%2 safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %22quality control%((((2c reliability) or (2.4 reliability))) or (((9 reliability) OR (2 reliability))))%2 safety and risk%22*.