Perhaps you should try some spelling variations:
byquality control » quality control, forquality control, quality controls
_quality control » quality control, quality controls, qouality control
11 reliability » 1 reliability, 3 reliability, 5 reliability
9 reliability » 3 reliability, 5 reliability, 2 reliability
22 safety » 2 safety, 12 safety, 5 safety

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: %((_quality control) OR (byquality control))%((11 reliability) OR (9 reliability))%((22 safety) OR (_ safety)) AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((_quality control) or (byquality control))%((11 reliability) or (9 reliability))%((22 safety) or (_ safety)) and risk%22*.