Perhaps you should try some spelling variations:
byquality control » quality control, forquality control, qouality control
_quality control » quality control, qouality control, qualify control
quality controls » quality control, qualite controle, quality concepts
ic reliability » 5 reliability, 9 reliability, 8 reliability
2 reliability » 3 reliability, 5 reliability
22 safety » 12 safety, _ safety, a safety
2 safety » _ safety, a 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: %((((_quality control) OR (quality controls))) OR (byquality control))%((2 reliability) OR (ic reliability))%((22 safety) OR (2 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((_quality control) or (quality controls))) or (byquality control))%((2 reliability) or (ic reliability))%((22 safety) OR (2 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((_quality control) or (quality controls))) or (byquality control))%((2 reliability) or (ic reliability))%((22 safety) OR (2 safety)) and risk%22*.