Perhaps you should try some spelling variations:
"international patient" » "international student", "international joint", "international students"
"international actors" » "international actor"
"international water" » "international actor", "international law", "international transfer"
"international trade" » "international law", "international student", "international finance"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("international actors") or ("international patient"))) or ((("international water") or ("international trade"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("international actors") OR ("international patient"))) OR ((("international water") OR ("international trade")))).
• Removing quotes may allow a broader search: (((( international actors ) or ( international patient ))) or ((( international water ) or ( international trade )))).
• Adding a wildcard symbol may retrieve word variants: (((("international actors") or ("international patient"))) or ((("international water") or ("international trade"))))*.