Perhaps you should try some spelling variations:
forquality control » quality control, byquality control, qouality control
22quality control » quality control, byquality control, quality controls
_quality control » quality control, byquality control, quality controls
21 reliability » 2 reliability, 1 reliability, 11 reliability
24 reliability » 2.4 reliability, 2 reliability, 4 reliability
ic reliability » 3 reliability, 5 reliability, 2 reliability
23 safety » 3 safety, 13 safety, 22 safety
2 safety » 5 safety, 4 safety, 3 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))%((((21 reliability) OR (24 reliability))) OR (ic reliability))%((23 safety) OR (2 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))%((((21 reliability) or (24 reliability))) or (ic reliability))%((23 safety) OR (2 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) or (_quality control))) or (forquality control))%((((21 reliability) or (24 reliability))) or (ic reliability))%((23 safety) OR (2 safety)) and risk%22*.