Perhaps you should try some spelling variations:
integration schengen » integration changed, integration schemes, integration challenges
integration theory » integration through, information theory, innovation theory
grant integration » migrant integration, migrants integration, statt integration
eu integration » deep integration, die integration, data integration
support eu » support _, support a, support 4

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( support eu integration theory. ) or ( support grant integration schengen. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( support eu integration theory. ) OR ( support grant integration schengen. )).
• Adding a wildcard symbol may retrieve word variants: (( support eu integration theory. ) or ( support grant integration schengen. ))*.