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