Perhaps you should try some spelling variations:
"support eu integration schengen." » "support eu integration changed.", "support eu integration schemes.", "support eu integration challenges.", "support deep integration schengen.", "support die integration schengen.", "support data integration schengen.", "support _ integration schengen.", "support a integration schengen.", "support 4 integration schengen."
"support grant integration theories." » "support grant integration theorems.", "support grant integrationstheorie 2.", "support grant integration theory.", "support migrant integration theories.", "support migrants integration theories.", "support statt integration theories."

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 schengen.") or ("support grant integration theories."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support eu integration schengen.") OR ("support grant integration theories.")).
• Removing quotes may allow a broader search: (( support eu integration schengen. ) or ( support grant integration theories. )).
• Adding a wildcard symbol may retrieve word variants: (("support eu integration schengen.") or ("support grant integration theories."))*.