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