Perhaps you should try some spelling variations:
_quality control » quality control, byquality control, quality controls
ic reliability » 5 reliability, 2 reliability, 7 reliability
3 reliability » 5 reliability
2c safety » 2 safety, 23 safety, 25 safety
2_ safety » 2 safety, 23 safety, 25 safety
22 safety » 2 safety, 12 safety, 5 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%((3 reliability) OR (ic reliability))%((((2c safety) OR (((2_ safety) OR (22 safety))))) OR (_ safety)) AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %_quality control%((3 reliability) or (ic reliability))%((((2c safety) or (((2_ safety) or (22 safety))))) or (_ safety)) and risk%22*.