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