Perhaps you should try some spelling variations:
"multinational operations" » "multinational corporations", "multinational corporation", "multifunctional operation"
"international relations" » "international migration", "international organizations", "international cooperation"
"institutional operation" » "institutional cooperation", "institutions operations", "institutional integration"

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 ("international relations"))) or ("institutional operation"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("multinational operations") OR ("international relations"))) OR ("institutional operation")).
• Removing quotes may allow a broader search: (((( multinational operations ) or ( international relations ))) or ( institutional operation )).
• Adding a wildcard symbol may retrieve word variants: (((("multinational operations") or ("international relations"))) or ("institutional operation"))*.