Perhaps you should try some spelling variations:
quality controls » quality control, qualite controle, quality concepts
2c reliability » 24 reliability, 29 reliability, ic reliability
20 reliability » 10 reliability, 24 reliability, 29 reliability
21 reliability » 1 reliability, 11 reliability, 24 reliability
2 reliability » 3 reliability, 5 reliability
13 safety » 3 safety, 10 safety, 11 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 controls%((((((2c reliability) OR (20 reliability))) OR (21 reliability))) OR (2 reliability))%((13 safety) OR (_ safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%quality controls%((((((2c reliability) OR (20 reliability))) or (21 reliability))) or (2 reliability))%((13 safety) or (_ safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %quality controls%((((((2c reliability) OR (20 reliability))) or (21 reliability))) or (2 reliability))%((13 safety) or (_ safety)) and risk%22*.