Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
ic reliability » 2 reliability, 7 reliability, 8 reliability
2c safety » 2 safety, 22 safety, 23 safety
25 safety » 2 safety, 15 safety, 22 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%((ic reliability) OR (((5 reliability) OR (3 reliability))))%((((2c safety) OR (5 safety))) OR (25 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22quality control%((ic reliability) or (((5 reliability) OR (3 reliability))))%((((2c safety) or (5 safety))) or (25 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %22quality control%((ic reliability) or (((5 reliability) OR (3 reliability))))%((((2c safety) or (5 safety))) or (25 safety)) and risk%22*.