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