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