Perhaps you should try some spelling variations:
22quality control » byquality control, forquality control, qualify control
quality controls » qualite controle, quality concepts
qouality control » qualify control, quality contral, forquality control
_quality control » byquality control, qualify control, quality contol
20 reliability » 2 reliability, 24 reliability, 29 reliability
10 reliability » 3 reliability, 2 reliability, 5 reliability
ic reliability » 2 reliability, 5 reliability, 9 reliability
23 safety » 3 safety, 2 safety, 13 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 (quality controls))) OR (((((qouality control) OR (_quality control))) OR (quality control))))%((((20 reliability) OR (10 reliability))) OR (ic reliability))%23 safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22quality control) or (quality controls))) or (((((qouality control) or (_quality control))) or (quality control))))%((((20 reliability) OR (10 reliability))) or (ic reliability))%23 safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) or (quality controls))) or (((((qouality control) or (_quality control))) or (quality control))))%((((20 reliability) OR (10 reliability))) or (ic reliability))%23 safety and risk%22*.