Perhaps you should try some spelling variations:
"international patients" » "international patient", "international students", "international segments"
"international waters" » "international water", "international patient", "international watercourses"
"international trade" » "international law", "international student", "international finance"
"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 patients"))) or ("international trade"))) or ("international actor"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("international waters") OR ("international patients"))) OR ("international trade"))) OR ("international actor")).
• Removing quotes may allow a broader search: (((((( international waters ) or ( international patients ))) or ( international trade ))) or ( international actor )).
• Adding a wildcard symbol may retrieve word variants: (((((("international waters") or ("international patients"))) or ("international trade"))) or ("international actor"))*.