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