Perhaps you should try some spelling variations:
"international patient" » "international joint", "international water", "international students"
"international student" » "international students"
"international waters" » "international water", "international law", "international trade"
"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 student"))))) or ("international watercourses"))) or ("international actor"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("international waters") OR ((("international patient") OR ("international student"))))) OR ("international watercourses"))) OR ("international actor")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"international waters\") or (((\"international patient\") OR (\"international student\"))))) or (\"international watercourses\"))) or (\"international actor\"))".
• Removing quotes may allow a broader search: (((((( international waters ) or ((( international patient ) OR ( international student ))))) or ( international watercourses ))) or ( international actor )).
• Adding a wildcard symbol may retrieve word variants: (((((("international waters") or ((("international patient") OR ("international student"))))) or ("international watercourses"))) or ("international actor"))*.