Perhaps you should try some spelling variations:
22quality control » byquality control, forquality control, quality controls
_quality control » byquality control, quality controls, qouality control
2c reliability » 20 reliability, 24 reliability, ic reliability
2 reliability » 3 reliability
5 reliability » 3 reliability
25 safety » 5 safety, 15 safety, 22 safety
23 safety » 3 safety, 13 safety, 22 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: %((((22quality control) OR (_quality control))) OR (quality control))%((((2c reliability) OR (2 reliability))) OR (5 reliability))%((25 safety) OR (((23 safety) OR (2 safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22quality control) OR (_quality control))) or (quality control))%((((2c reliability) or (2 reliability))) or (5 reliability))%((25 safety) or (((23 safety) or (2 safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) OR (_quality control))) or (quality control))%((((2c reliability) or (2 reliability))) or (5 reliability))%((25 safety) or (((23 safety) or (2 safety)))) and risk%22*.