Perhaps you should try some spelling variations:
"closed-online scheduling" » "closed-machine scheduling", "closed-ontime scheduling", "closed-onmachine scheduling", "closed-onaware scheduling"
"closed-ontime scheduling" » "closed-runtime scheduling", "closed-anytime scheduling", "closed-time scheduling"
"closed-line scheduling" » "closed-time scheduling", "closed-machine scheduling", "closed-aware scheduling"

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: (("closed-line scheduling") OR ((("closed-online scheduling") OR ("closed-ontime scheduling")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"closed-line scheduling\") or (((\"closed-online scheduling\") OR (\"closed-ontime scheduling\"))))".
• Removing quotes may allow a broader search: (( closed-line scheduling ) or ((( closed-online scheduling ) OR ( closed-ontime scheduling )))).
• Adding a wildcard symbol may retrieve word variants: (("closed-line scheduling") or ((("closed-online scheduling") OR ("closed-ontime scheduling"))))*.