Perhaps you should try some spelling variations:
quality controls » quality control, qualite controle, quality concepts
2c reliability » 20 reliability, 29 reliability, ic reliability
24 reliability » 2.4 reliability, 4 reliability, 14 reliability
2 reliability » 3 reliability, 5 reliability
3 safety » 5 safety, 4 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 controls%((((2c reliability) OR (24 reliability))) OR (2 reliability))%((2((3 safety) OR (a safety))) OR (((3 safety) OR (a safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%quality controls%((((2c reliability) or (24 reliability))) or (2 reliability))%((2((3 safety) OR (a safety))) or (((3 safety) OR (a safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %quality controls%((((2c reliability) or (24 reliability))) or (2 reliability))%((2((3 safety) OR (a safety))) or (((3 safety) OR (a safety)))) and risk%22*.