Perhaps you should try some spelling variations:
"international patient" » "international student", "international joint", "international water"
"international waters" » "international water", "international watercourses", "international law"
"international trades" » "international trade", "international transfer", "international studies"
"international actor" » "international water", "international edition"

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

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