Perhaps you should try some spelling variations:
international policies » international politics, international prices, international policy
3rd international » 2nd international
border migration » worker migration, der migration
migration some » migration sowie, migration semi, migration soft
supply border » supply order, supply under
supply 3rd » supply 3, supply 3.3, supply 3.1

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply 3rd international policies. ) or ( supply border migration some. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply 3rd international policies. ) OR ( supply border migration some. )).
• Adding a wildcard symbol may retrieve word variants: (( supply 3rd international policies. ) or ( supply border migration some. ))*.