Perhaps you should try some spelling variations:
"international waters" » "international patient", "international actor", "international trade", "international actors", "international patients", "international trades"
"international watercourses" » "international actorcourses", "international patientcourses", "international tradecourses"
"international water" » "international actor", "international patient", "international trade"

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