Perhaps you should try some spelling variations:
byquality control » quality control, forquality control, qouality control
_quality control » quality control, qouality control, qualify control
quality controls » quality control, qualite controle, quality concepts
2.4 reliability » 2.6 reliability, 5.4 reliability, 2.2 reliability
ic reliability » 3 reliability, 5 reliability, 2 reliability
2c safety » 2 safety, 22 safety, 23 safety
3 safety » 5 safety, 4 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: %((((_quality control) OR (quality controls))) OR (byquality control))%((2.4 reliability) OR (ic reliability))%((2c safety) OR (3 safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((_quality control) OR (quality controls))) or (byquality control))%((2.4 reliability) or (ic reliability))%((2c safety) or (3 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((_quality control) OR (quality controls))) or (byquality control))%((2.4 reliability) or (ic reliability))%((2c safety) or (3 safety)) and risk%22*.