Perhaps you should try some spelling variations:
"closed-onaware scheduling" » "closed-unaware scheduling", "closed-aware scheduling", "closed-software scheduling"
"closed-ontime scheduling" » "closed-runtime scheduling", "closed-anytime scheduling", "closed-online scheduling"
"closed-line scheduling" » "closed-online 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-onaware scheduling") OR ((("closed-ontime scheduling") OR ("closed-time scheduling")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"closed-line scheduling\") or (((\"closed-onaware scheduling\") or (((\"closed-ontime scheduling\") OR (\"closed-time scheduling\"))))))".
• Removing quotes may allow a broader search: (( closed-line scheduling ) or ((( closed-onaware scheduling ) or ((( closed-ontime scheduling ) OR ( closed-time scheduling )))))).
• Adding a wildcard symbol may retrieve word variants: (("closed-line scheduling") or ((("closed-onaware scheduling") or ((("closed-ontime scheduling") OR ("closed-time scheduling"))))))*.