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