Perhaps you should try some spelling variations:
forquality control » fertility control, quality controls, qualify control
22quality control » quality controls, qualify control, quality contol
byquality control » quality controls, qualify control, quality contol
qouality control » quality controls, qualify control, quality contral
_quality control » quality controls, qualify control, quality contol
2.4 reliability » 2.6 reliability, 5.4 reliability, 2.2 reliability
5 reliability » 2 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 (((((forquality control) OR (qouality control))) OR (((((_quality control) OR (byquality control))) OR (quality control))))))%((2.4 reliability) OR (((5 reliability) OR (3 reliability))))%2c safety AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22quality control) or (((((forquality control) or (qouality control))) or (((((_quality control) OR (byquality control))) or (quality control))))))%((2.4 reliability) or (((5 reliability) or (3 reliability))))%2c safety and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((22quality control) or (((((forquality control) or (qouality control))) or (((((_quality control) OR (byquality control))) or (quality control))))))%((2.4 reliability) or (((5 reliability) or (3 reliability))))%2c safety and risk%22*.