Perhaps you should try some spelling variations:
22quality control » quality control, forquality control, quality controls
byquality control » quality control, forquality control, quality controls
_quality control » quality control, quality controls, qouality control
11 reliability » 1 reliability, 3 reliability, 5 reliability
ic reliability » 5 reliability, 2 reliability, 7 reliability
22 safety » 2 safety, 12 safety, 5 safety

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 (byquality control))))%((11 reliability) OR (ic reliability))%22 safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22quality control) or (((_quality control) OR (byquality control))))%((11 reliability) or (ic reliability))%22 safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((22quality control) or (((_quality control) OR (byquality control))))%((11 reliability) or (ic reliability))%22 safety and risk%22*.