Perhaps you should try some spelling variations:
2c reliability » 24 reliability, 20 reliability, 26 reliability
22 reliability » 2.2 reliability, 12 reliability, 24 reliability
21 reliability » 1 reliability, 11 reliability, 24 reliability
ic reliability » 5 reliability, 9 reliability, 8 reliability
2 reliability » 5 reliability
23 safety » 3 safety, 2 safety, 13 safety

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 (22 reliability))) OR (((2 reliability) OR (3 reliability))))) OR (21 reliability))) OR (ic reliability))%23 safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%quality control%((((((((2c reliability) OR (22 reliability))) or (((2 reliability) or (3 reliability))))) or (21 reliability))) or (ic reliability))%23 safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %quality control%((((((((2c reliability) OR (22 reliability))) or (((2 reliability) or (3 reliability))))) or (21 reliability))) or (ic reliability))%23 safety and risk%22*.