Perhaps you should try some spelling variations:
_quality control » byquality control, qouality control, qualify control
quality controls » qualite controle, quality concepts
24 reliability » 2.4 reliability, 2 reliability, 4 reliability
ic reliability » 3 reliability, 5 reliability, 2 reliability
2c safety » 2 safety, 22 safety, 23 safety
2a safety » 2 safety, 22 safety, 23 safety
a safety » a safe

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 (quality control))))%((24 reliability) OR (ic reliability))%((((2c safety) OR (2a safety))) OR (a safety)) AND risk%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((_quality control) or (((quality controls) OR (quality control))))%((24 reliability) or (ic reliability))%((((2c safety) or (2a safety))) or (a safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((_quality control) or (((quality controls) OR (quality control))))%((24 reliability) or (ic reliability))%((((2c safety) or (2a safety))) or (a safety)) and risk%22*.