Perhaps you should try some spelling variations:
byquality control » quality control, _quality control, forquality control
ic reliability » 3 reliability, 5 reliability, 2 reliability
4 reliability » 3 reliability, 5 reliability, 2 reliability
2c safety » 22 safety, 23 safety, 25 safety
2 safety » 5 safety, 4 safety
3 safety » 5 safety, 4 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: %byquality control%((4 reliability) OR (ic reliability))%((((2c safety) OR (2 safety))) OR (3 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%byquality control%((4 reliability) or (ic reliability))%((((2c safety) OR (2 safety))) or (3 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %byquality control%((4 reliability) or (ic reliability))%((((2c safety) OR (2 safety))) or (3 safety)) and risk%22*.