Perhaps you should try some spelling variations:
22quality control » forquality control, quality controls, qualify control
byquality control » forquality control, quality controls, qualify control
qouality control » quality controls, qualify control, quality contral
_quality control » quality controls, qualify control, quality contol
20 reliability » 24 reliability, 29 reliability, 30 reliability
10 reliability » 3 reliability, 5 reliability, 4 reliability
2 reliability » 3 reliability, 5 reliability
2c safety » 2 safety, 22 safety, 23 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: %((((((22quality control) OR (qouality control))) OR (_quality control))) OR (((byquality control) OR (quality control))))%((((20 reliability) OR (10 reliability))) OR (2 reliability))%2c safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((((22quality control) or (qouality control))) or (_quality control))) or (((byquality control) or (quality control))))%((((20 reliability) OR (10 reliability))) or (2 reliability))%2c safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((((22quality control) or (qouality control))) or (_quality control))) or (((byquality control) or (quality control))))%((((20 reliability) OR (10 reliability))) or (2 reliability))%2c safety and risk%22*.