Perhaps you should try some spelling variations:
byquality control » quality control, forquality control, quality controls
_quality control » quality control, quality controls, qouality control
2 reliability » 3 reliability, 5 reliability
8 reliability » 3 reliability, 5 reliability, 4 reliability

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))%((2 reliability) OR (8 reliability))%5 safety AND risk%22.
• Adding a wildcard symbol may retrieve word variants: %((byquality control) or (_quality control))%((2 reliability) or (8 reliability))%5 safety and risk%22*.