Perhaps you should try some spelling variations:
byquality control » quality control, _quality control, forquality control
2c reliability » 2 reliability, 20 reliability, 24 reliability
ic reliability » 5 reliability, 2 reliability, 7 reliability

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: %byquality control%((2c reliability) OR (ic reliability))%((((4 safety) OR (5 safety))) OR (_ safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%byquality control%((2c reliability) or (ic reliability))%((((4 safety) OR (5 safety))) or (_ safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %byquality control%((2c reliability) or (ic reliability))%((((4 safety) OR (5 safety))) or (_ safety)) and risk%22*.