Perhaps you should try some spelling variations:
"elective _ decision and execution control" » "effective _ decision and execution control" (Expand Search), "executive _ decision and execution control" (Expand Search)
"selection _ decision and execution control" » "detection _ decision and execution control" (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("elective _ decision and execution control") OR ("selection _ decision and execution control"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"elective _ decision and execution control\") OR (\"selection _ decision and execution control\"))".
• Removing quotes may allow a broader search: (( elective _ decision and execution control ) OR ( selection _ decision and execution control )).
• Adding a wildcard symbol may retrieve word variants: (("elective _ decision and execution control") OR ("selection _ decision and execution control"))*.