Perhaps you should try some spelling variations:
"scheduling planning uncertainty" » "scheduling learning uncertainty", "scheduling blunting uncertainty", "scheduling linking uncertainty"
"scheduling handling uncertainty" » "scheduling managing uncertainty", "scheduling applying uncertainty", "scheduling online uncertainty", "scheduling scheduling uncertainty"
"scheduling modeling uncertainty" » "scheduling model uncertainty", "scheduling models uncertainty", "scheduling meetings uncertainty"

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