Perhaps you should try some spelling variations:
_quality control » byquality control, qouality control, qualify control
quality controls » qualite controle, quality concepts
ic reliability » 2 reliability, 7 reliability, 8 reliability
2c safety » 2 safety, 22 safety, 23 safety

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))%((((3 reliability) OR (5 reliability))) OR (ic reliability))%((2c safety) OR (5 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))%((((3 reliability) or (5 reliability))) or (ic reliability))%((2c safety) or (5 safety)) and risk%22".
• Adding a wildcard symbol may retrieve word variants: %((((_quality control) OR (quality controls))) or (quality control))%((((3 reliability) or (5 reliability))) or (ic reliability))%((2c safety) or (5 safety)) and risk%22*.