Perhaps you should try some spelling variations:
quality controls » qualite controle, quality concepts
2c reliability » 2 reliability, 20 reliability, 24 reliability
5 reliability » 3 reliability
2 safety » 5 safety, 4 safety, 3 safety
a 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: %((quality control) OR (quality controls))%((2c reliability) OR (5 reliability))%((2 safety) OR (a safety)) AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((quality control) or (quality controls))%((2c reliability) or (5 reliability))%((2 safety) or (a safety)) and risk%22*.