Perhaps you should try some spelling variations:
22quality control » quality control, forquality control, quality controls
byquality control » quality control, forquality control, quality controls
_quality control » quality control, quality controls, qouality control
5 reliability » 3 reliability

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 (byquality control))) OR (_quality control))%5 reliability%_ safety AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) or (byquality control))) or (_quality control))%5 reliability%_ safety and risk%22*.