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"))))*.