Perhaps you should try some spelling variations:
_quality control » quality control, byquality control, qouality control
quality controls » quality control, quality concepts
qualite controle » quality control
2c reliability » 2 reliability, 20 reliability, 24 reliability
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: %((_quality control) OR (((quality controls) OR (qualite controle))))%((2c reliability) OR (5 reliability))%((5 safety) OR (_ safety)) AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((_quality control) or (((quality controls) or (qualite controle))))%((2c reliability) or (5 reliability))%((5 safety) or (_ safety)) and risk%22*.