Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
qouality control » quality control, quality controls, _quality control
23 reliability » 2.3 reliability, 2 reliability, 20 reliability
13 reliability » 11 reliability, 5 reliability, 2 reliability
3 reliability » 5 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 (qouality control))%((((23 reliability) OR (13 reliability))) OR (3 reliability))%2c safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22quality control) or (qouality control))%((((23 reliability) OR (13 reliability))) or (3 reliability))%2c safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((22quality control) or (qouality control))%((((23 reliability) OR (13 reliability))) or (3 reliability))%2c safety and risk%22*.