Perhaps you should try some spelling variations:
forquality control » _quality control, byquality control, qouality control
22quality control » _quality control, byquality control, quality controls
20 reliability » 10 reliability, 24 reliability, 29 reliability
ic reliability » 7 reliability, 8 reliability, 11 reliability
5 reliability » 3 reliability
2 reliability » 3 reliability
2c safety » 2 safety, 23 safety, 25 safety
22 safety » 2 safety, 12 safety, 5 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 control))) OR (forquality control))%((((20 reliability) OR (ic reliability))) OR (((5 reliability) OR (2 reliability))))%((2c safety) OR (22 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22quality control) or (quality control))) or (forquality control))%((((20 reliability) or (ic reliability))) or (((5 reliability) OR (2 reliability))))%((2c safety) or (22 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) or (quality control))) or (forquality control))%((((20 reliability) or (ic reliability))) or (((5 reliability) OR (2 reliability))))%((2c safety) or (22 safety)) and risk%22*.