Perhaps you should try some spelling variations:
forquality control » _quality control, byquality control, qouality control
2c reliability » 2 reliability, 24 reliability, 29 reliability
20 reliability » 2 reliability, 10 reliability, 24 reliability
ic reliability » 2 reliability, 7 reliability, 8 reliability
22 safety » 12 safety, 5 safety, 4 safety
2 safety » 5 safety, 4 safety, 3 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 (forquality control))%((((2c reliability) OR (20 reliability))) OR (((((ic reliability) OR (5 reliability))) OR (3 reliability))))%((22 safety) OR (2 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((quality control) or (forquality control))%((((2c reliability) or (20 reliability))) or (((((ic reliability) OR (5 reliability))) or (3 reliability))))%((22 safety) or (2 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((quality control) or (forquality control))%((((2c reliability) or (20 reliability))) or (((((ic reliability) OR (5 reliability))) or (3 reliability))))%((22 safety) or (2 safety)) and risk%22*.