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

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