Perhaps you should try some spelling variations:
forquality control » quality control, _quality control, qouality control
byquality control » quality control, _quality control, qouality control
quality controls » quality control, qualite controle, quality concepts
2.2 reliability » 1.2 reliability, 2.6 reliability, 12 reliability
5 reliability » 3 reliability
22 safety » 12 safety, 5 safety, 4 safety
2 safety » 5 safety, 4 safety, 3 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: %((byquality control) OR (((forquality control) OR (quality controls))))%((2.2 reliability) OR (5 reliability))%((2 safety) OR (22 safety)) AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((byquality control) or (((forquality control) or (quality controls))))%((2.2 reliability) or (5 reliability))%((2 safety) or (22 safety)) and risk%22*.