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
safety » samety
safe » same

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