Perhaps you should try some spelling variations:
"institutional integration" » "institutional interaction", "institutionelle integration", "institutional interactions"
"multinational operations" » "multinational corporations", "multinational corporation", "multifunctional operation"
"institutional operation" » "institutional cooperation", "institutions operations", "institutional interaction"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("multinational operations") or ((("institutional operation") OR ("institutional integration"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("multinational operations") OR ((("institutional operation") OR ("institutional integration"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"multinational operations\") or (((\"institutional operation\") OR (\"institutional integration\"))))*".
• Removing quotes may allow a broader search: (( multinational operations ) or ((( institutional operation ) OR ( institutional integration ))))*.