Perhaps you should try some spelling variations:
byquality control » _quality control, forquality control, quality controls
2c reliability » 20 reliability, 24 reliability, ic reliability
8 reliability » 7 reliability
2c safety » 2 safety, 22 safety, 21 safety
23 safety » 3 safety, 2 safety, 13 safety
25 safety » 2 safety, 15 safety, 22 safety

Try widening your search to All Fields.

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: %((quality control) OR (byquality control))%((((2c reliability) OR (((2 reliability) OR (3 reliability))))) OR (((8 reliability) OR (5 reliability))))%((((2c safety) OR (23 safety))) OR (((25 safety) OR (5 safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((quality control) or (byquality control))%((((2c reliability) or (((2 reliability) OR (3 reliability))))) or (((8 reliability) or (5 reliability))))%((((2c safety) or (23 safety))) or (((25 safety) or (5 safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((quality control) or (byquality control))%((((2c reliability) or (((2 reliability) OR (3 reliability))))) or (((8 reliability) or (5 reliability))))%((((2c safety) or (23 safety))) or (((25 safety) or (5 safety)))) and risk%22*.