Perhaps you should try some spelling variations:
quality controls » quality control, quality concepts
qualite controle » quality control
2 reliability » 3 reliability, 5 reliability
9 reliability » 3 reliability, 5 reliability, 4 reliability
2 safety » _ safety, a 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 controls) OR (qualite controle))%((2 reliability) OR (9 reliability))%2 safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((quality controls) OR (qualite controle))%((2 reliability) or (9 reliability))%2 safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((quality controls) OR (qualite controle))%((2 reliability) or (9 reliability))%2 safety and risk%22*.