Perhaps you should try some spelling variations:
forquality control » byquality control, qouality control, fertility control
22quality control » byquality control, quality controls, qouality control
_quality control » byquality control, quality controls, qouality control
4 reliability » 3 reliability, 2 reliability
9 reliability » 3 reliability, 2 reliability
5 reliability » 3 reliability
2c safety » 22 safety, 25 safety, 21 safety
23 safety » 3 safety, 13 safety, 22 safety
2 safety » 5 safety, 4 safety, 3 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 (quality control))) OR (((forquality control) OR (_quality control))))%((4 reliability) OR (((9 reliability) OR (5 reliability))))%((2c safety) OR (((23 safety) OR (2 safety)))) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22quality control) or (quality control))) or (((forquality control) OR (_quality control))))%((4 reliability) or (((9 reliability) or (5 reliability))))%((2c safety) or (((23 safety) or (2 safety)))) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) or (quality control))) or (((forquality control) OR (_quality control))))%((4 reliability) or (((9 reliability) or (5 reliability))))%((2c safety) or (((23 safety) or (2 safety)))) and risk%22*.