Perhaps you should try some spelling variations:
24 reliability » 2.4 reliability, 2 reliability, 4 reliability
ic reliability » 2 reliability, 5 reliability, 8 reliability
9 reliability » 3 reliability, 2 reliability, 5 reliability
2 safety » _ safety, 4 safety, 3 safety
a safety » _ safety, a safe
5 safety » _ 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: %quality control%((24 reliability) OR (((ic reliability) OR (9 reliability))))%((((2 safety) OR (a safety))) OR (5 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%quality control%((24 reliability) or (((ic reliability) or (9 reliability))))%((((2 safety) OR (a safety))) or (5 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %quality control%((24 reliability) or (((ic reliability) or (9 reliability))))%((((2 safety) OR (a safety))) or (5 safety)) and risk%22*.