Perhaps you should try some spelling variations:
forquality control » _quality control, qouality control, fertility control
22quality control » _quality control, quality controls, qouality control
byquality control » _quality control, quality controls, qouality control
20 reliability » 10 reliability, 30 reliability, 2.6 reliability
29 reliability » 2.6 reliability, 2.2 reliability, 2.3 reliability
24 reliability » 2.4 reliability, 4 reliability, 14 reliability
2 reliability » 3 reliability, 5 reliability
9 reliability » 3 reliability, 5 reliability, 4 reliability
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 (byquality control))) OR (((forquality control) OR (quality control))))%((((((20 reliability) OR (((29 reliability) OR (24 reliability))))) OR (2 reliability))) OR (9 reliability))%a safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22quality control) OR (byquality control))) or (((forquality control) or (quality control))))%((((((20 reliability) or (((29 reliability) or (24 reliability))))) or (2 reliability))) or (9 reliability))%a safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) OR (byquality control))) or (((forquality control) or (quality control))))%((((((20 reliability) or (((29 reliability) or (24 reliability))))) or (2 reliability))) or (9 reliability))%a safety and risk%22*.