Perhaps you should try some spelling variations:
quality controls » qualite controle, quality concepts
2c reliability » 2 reliability, 24 reliability, ic reliability
9 reliability » 3 reliability, 2 reliability, 5 reliability
22 safety » 2 safety, 12 safety, a 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) OR (quality controls))%((2c reliability) OR (9 reliability))%((22 safety) OR (_ safety)) AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((quality control) or (quality controls))%((2c reliability) or (9 reliability))%((22 safety) or (_ safety)) and risk%22*.