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