Perhaps you should try some spelling variations:
byquality control » _quality control, forquality control, quality controls
2c reliability » 2 reliability, 20 reliability, 24 reliability
21 reliability » 2 reliability, 1 reliability, 11 reliability
ic reliability » 5 reliability, 2 reliability, 7 reliability
23 safety » 2 safety, 22 safety, 5 safety
13 safety » 10 safety, 11 safety, 1 safety
3 safety » 5 safety, 4 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: %((byquality control) OR (quality control))%((((2c reliability) OR (21 reliability))) OR (ic reliability))%((23 safety) OR (((13 safety) OR (3 safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((byquality control) OR (quality control))%((((2c reliability) or (21 reliability))) or (ic reliability))%((23 safety) or (((13 safety) or (3 safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((byquality control) OR (quality control))%((((2c reliability) or (21 reliability))) or (ic reliability))%((23 safety) or (((13 safety) or (3 safety)))) and risk%22*.