Perhaps you should try some spelling variations:
22quality control » quality control, byquality control, forquality control
_quality control » quality control, byquality control, quality controls
quality concepts » stability concepts
10 reliability » 3 reliability, 2 reliability, 5 reliability
9 reliability » 3 reliability, 2 reliability, 5 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 concepts))))%((10 reliability) OR (9 reliability))%a safety AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((22quality control) or (((_quality control) or (quality concepts))))%((10 reliability) or (9 reliability))%a safety and risk%22*.