Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
ic reliability » 5 reliability, 9 reliability, 8 reliability
2 reliability » 5 reliability
2 safety » a safety, 5 safety, 4 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: %22quality control%((2 reliability) OR (((ic reliability) OR (3 reliability))))%((((2 safety) OR (_ safety))) OR (2((2 safety) OR (_ safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22quality control%((2 reliability) or (((ic reliability) or (3 reliability))))%((((2 safety) OR (_ safety))) or (2((2 safety) OR (_ safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %22quality control%((2 reliability) or (((ic reliability) or (3 reliability))))%((((2 safety) OR (_ safety))) or (2((2 safety) OR (_ safety)))) and risk%22*.