Perhaps you should try some spelling variations:
_quality control » byquality control, quality controls, qouality control
2.4 reliability » 2.6 reliability, 5.4 reliability, 2.2 reliability
2c reliability » 2 reliability, 20 reliability, 21 reliability
24 reliability » 2 reliability, 14 reliability, 29 reliability
ic reliability » 2 reliability, 5 reliability, 9 reliability
2c safety » 2 safety, 22 safety, 23 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: %((quality control) OR (_quality control))%((((2c reliability) OR (((24 reliability) OR (2.4 reliability))))) OR (ic reliability))%2c safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((quality control) or (_quality control))%((((2c reliability) or (((24 reliability) OR (2.4 reliability))))) or (ic reliability))%2c safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((quality control) or (_quality control))%((((2c reliability) or (((24 reliability) OR (2.4 reliability))))) or (ic reliability))%2c safety and risk%22*.