Perhaps you should try some spelling variations:
22quality control » quality control, byquality control, forquality control
_quality control » quality control, byquality control, qouality control
quality controls » quality control, qualite controle, quality concepts
ic reliability » 2 reliability, 5 reliability, 9 reliability
a safety » _ safety, a safe

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: %((22quality control) OR (((_quality control) OR (quality controls))))%((3 reliability) OR (ic reliability))%a safety AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((22quality control) or (((_quality control) or (quality controls))))%((3 reliability) or (ic reliability))%a safety and risk%22*.