Perhaps you should try some spelling variations:
22quality control » quality control, forquality control, qouality control
byquality control » quality control, forquality control, qouality control
_quality control » quality control, qouality control, qualify control
quality controls » quality control, qualite controle, quality concepts
29 reliability » 20 reliability, 24 reliability, 2.6 reliability
2 reliability » 3 reliability, 5 reliability
9 reliability » 3 reliability, 5 reliability, 4 reliability
2c safety » 2 safety, 22 safety, 23 safety

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) OR (quality controls))))%((((29 reliability) OR (2 reliability))) OR (9 reliability))%2c safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22quality control) or (byquality control))) or (((_quality control) or (quality controls))))%((((29 reliability) OR (2 reliability))) or (9 reliability))%2c safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) or (byquality control))) or (((_quality control) or (quality controls))))%((((29 reliability) OR (2 reliability))) or (9 reliability))%2c safety and risk%22*.