Perhaps you should try some spelling variations:
2.4 reliability » 2.6 reliability, 5.4 reliability, 2.2 reliability
2c reliability » 2 reliability, 20 reliability, 29 reliability
24 reliability » 2 reliability, 14 reliability, 20 reliability
9 reliability » 3 reliability, 5 reliability, 2 reliability
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: %quality control%((((2c reliability) OR (((24 reliability) OR (2.4 reliability))))) OR (9 reliability))%2 safety AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %quality control%((((2c reliability) or (((24 reliability) or (2.4 reliability))))) or (9 reliability))%2 safety and risk%22*.