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