Perhaps you should try some spelling variations:
22quality control » quality control, forquality control, quality controls
byquality control » quality control, forquality control, quality controls
_quality control » quality control, quality controls, qouality control
ic reliability » 7 reliability, 8 reliability, 11 reliability
25 safety » 5 safety, 2 safety, 15 safety
2c safety » 2 safety, 23 safety, 21 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 (byquality control))%((ic reliability) OR (((5 reliability) OR (((2 reliability) OR (3 reliability))))))%((((2c safety) OR (25 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 (byquality control))%((ic reliability) or (((5 reliability) or (((2 reliability) OR (3 reliability))))))%((((2c safety) or (25 safety))) or (22 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) or (_quality control))) or (byquality control))%((ic reliability) or (((5 reliability) or (((2 reliability) OR (3 reliability))))))%((((2c safety) or (25 safety))) or (22 safety)) and risk%22*.