Perhaps you should try some spelling variations:
byquality control » quality control, forquality control, quality controls
_quality control » quality control, quality controls, qualify control
qouality control » quality control, quality controls, qualify control
2c reliability » 2 reliability, 20 reliability, 24 reliability
ic reliability » 5 reliability, 2 reliability, 7 reliability
4 safety » 5 safety
a safety » a safe

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: %((byquality control) OR (((_quality control) OR (qouality control))))%((2c reliability) OR (ic reliability))%((4 safety) OR (a safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((byquality control) or (((_quality control) or (qouality control))))%((2c reliability) or (ic reliability))%((4 safety) OR (a safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((byquality control) or (((_quality control) or (qouality control))))%((2c reliability) or (ic reliability))%((4 safety) OR (a safety)) and risk%22*.