Perhaps you should try some spelling variations:
international policies » international politics, international prices, international policy
interventions journal » international journal, interventions during, intervention social
crowd international » from international, how international, new international
supply health » support health, supply reach
supply crowd » supply growth, supply cost, supply how

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: (( supply health interventions journal. ) OR ( supply crowd international policies. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply health interventions journal. ) or ( supply crowd international policies. ))*.