Perhaps you should try some spelling variations:
"scheduling handling uncertainty" » "scheduling managing uncertainty", "scheduling planning uncertainty", "scheduling applying uncertainty", "scheduling online uncertainty"
"scheduling modeling uncertainty" » "scheduling model uncertainty", "scheduling meetings uncertainty", "scheduling considering uncertainty"
"scheduling models uncertainty" » "scheduling model uncertainty", "scheduling modelling uncertainty", "scheduling model uncertainties"

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: (("scheduling handling uncertainty") OR ((("scheduling modeling uncertainty") OR ("scheduling models uncertainty")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"scheduling handling uncertainty\") or (((\"scheduling modeling uncertainty\") OR (\"scheduling models uncertainty\"))))".
• Removing quotes may allow a broader search: (( scheduling handling uncertainty ) or ((( scheduling modeling uncertainty ) OR ( scheduling models uncertainty )))).
• Adding a wildcard symbol may retrieve word variants: (("scheduling handling uncertainty") or ((("scheduling modeling uncertainty") OR ("scheduling models uncertainty"))))*.