Perhaps you should try some spelling variations:
"supply system internationaler policies." » "supply system international policies.", "supply system internationaler politik.", "supply system international politics.", "supply kontext internationaler policies.", "supply als internationaler policies.", "supply systems internationaler policies."
"supply trade integrating policies." » "supply trade integration policies.", "supply trade integrated policies.", "supply trade integrating positive.", "supply true integrating policies.", "supply drama integrating policies.", "supply case integrating policies."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply trade integrating policies.") or ("supply system internationaler policies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply trade integrating policies.") OR ("supply system internationaler policies.")).
• Removing quotes may allow a broader search: (( supply trade integrating policies. ) or ( supply system internationaler policies. )).
• Adding a wildcard symbol may retrieve word variants: (("supply trade integrating policies.") or ("supply system internationaler policies."))*.