Perhaps you should try some spelling variations:
migrants interaction » migrants integration, migrant integration, immigrants integration
integrating policies » integration policies, integrated policies, integrating positive
interaction terms » interaction term
support migrants » supporting migrants, support grant
4 integrating » _ integrating
supply 4 » supply _, supply a, supply 3

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( support migrants interaction terms. ) or ( supply 4 integrating policies. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( support migrants interaction terms. ) OR ( supply 4 integrating policies. )).
• Adding a wildcard symbol may retrieve word variants: (( support migrants interaction terms. ) or ( supply 4 integrating policies. ))*.