Perhaps you should try some spelling variations:
"international patient" » "international student", "international students", "internationalization _"
"international waters" » "international actor", "international watercourses", "international law", "international actors", "international laws", "international trades"
"international water" » "international actor", "international law", "international trade"
"international joint" » "international journal", "international issn", "international tourists"

You may be able to get more results by adjusting your search query.

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