Perhaps you should try some spelling variations:
integrationspolitik series » integrationspolitik soziale, integrationspolitik hans, integrationspolitik i
und integrationspolitik » der integrationspolitik, als integrationspolitik, die integrationspolitik
labour migration » labor migration
up migration » 2 migration, 3 migration, 4 migration

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

• Performing a fuzzy search may retrieve terms with similar spellings: (studien or studies) ((up migration) or (labour migration))- und integrationspolitik series~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (studien OR studies) ((up migration) OR (labour migration))- und integrationspolitik series.
• Adding a wildcard symbol may retrieve word variants: (studien or studies) ((up migration) or (labour migration))- und integrationspolitik series*.