Perhaps you should try some spelling variations:
_quality control » quality control, byquality control, quality controls
2c reliability » 2 reliability, ic reliability, 20 reliability
24 reliability » 2.4 reliability, 2 reliability, 4 reliability
9 reliability » 2 reliability, 4 reliability
5 reliability » 2 reliability
23 safety » 3 safety, 2 safety, 13 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: %_quality control%((((2c reliability) OR (24 reliability))) OR (((((9 reliability) OR (3 reliability))) OR (5 reliability))))%23 safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%_quality control%((((2c reliability) or (24 reliability))) or (((((9 reliability) OR (3 reliability))) or (5 reliability))))%23 safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %_quality control%((((2c reliability) or (24 reliability))) or (((((9 reliability) OR (3 reliability))) or (5 reliability))))%23 safety and risk%22*.