Perhaps you should try some spelling variations:
22quality control » quality control, _quality control, byquality control
2c reliability » 2 reliability, 20 reliability, 24 reliability
8 reliability » 2 reliability, 4 reliability, 7 reliability
9 reliability » 2 reliability, 4 reliability
a safety » a safe
2 safety » 5 safety, 4 safety, 3 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%((2c reliability) OR (((((((8 reliability) OR (9 reliability))) OR (3 reliability))) OR (5 reliability))))%((a safety) OR (2 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22quality control%((2c reliability) or (((((((8 reliability) OR (9 reliability))) or (3 reliability))) or (5 reliability))))%((a safety) or (2 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %22quality control%((2c reliability) or (((((((8 reliability) OR (9 reliability))) or (3 reliability))) or (5 reliability))))%((a safety) or (2 safety)) and risk%22*.