Perhaps you should try some spelling variations:
22quality control » byquality control, forquality control, quality controls
_quality control » byquality control, quality controls, qouality control
ic reliability » 5 reliability, 7 reliability, 8 reliability
2 reliability » 5 reliability
3 reliability » 5 reliability
2 safety » 5 safety, 4 safety, 3 safety
a safety » a safe

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: %((((22quality control) OR (quality control))) OR (_quality control))%((2 reliability) OR (((ic reliability) OR (3 reliability))))%((2 safety) OR (a safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22quality control) OR (quality control))) or (_quality control))%((2 reliability) or (((ic reliability) or (3 reliability))))%((2 safety) or (a safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) OR (quality control))) or (_quality control))%((2 reliability) or (((ic reliability) or (3 reliability))))%((2 safety) or (a safety)) and risk%22*.