Perhaps you should try some spelling variations:
byquality control » quality control, forquality control, quality controls
_quality control » quality control, quality controls, qouality control
ic reliability » 5 reliability, 7 reliability, 8 reliability
2 reliability » 3 reliability, 5 reliability
4 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: %((byquality control) OR (_quality control))%((2 reliability) OR (ic reliability))%((4 safety) OR (_ safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((byquality control) or (_quality control))%((2 reliability) or (ic reliability))%((4 safety) OR (_ safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((byquality control) or (_quality control))%((2 reliability) or (ic reliability))%((4 safety) OR (_ safety)) and risk%22*.