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
_quality control » quality control, quality controls, qouality control
2 reliability » 5 reliability
2c safety » 2 safety, 22 safety, 25 safety
23 safety » 3 safety, 2 safety, 13 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 (byquality control))) OR (((forquality control) OR (_quality control))))%((2 reliability) OR (3 reliability))%((2c safety) OR (23 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))))%((2 reliability) or (3 reliability))%((2c safety) OR (23 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((22quality control) or (byquality control))) or (((forquality control) or (_quality control))))%((2 reliability) or (3 reliability))%((2c safety) OR (23 safety)) and risk%22*.