Perhaps you should try some spelling variations:
"supply von international policies." » "supply von international politics.", "supply von international prices.", "supply von international policy.", "supply von internationalen policies.", "supply von internationaler policies.", "supply bonn international policies.", "supply ann international policies.", "supply donor international policies."
"supply change international services." » "supply change international service.", "supply change international series.", "supply change international prices.", "supply changing international services.", "supply chinese international services.", "supply care international services.", "supply charges international services.", "supply channels international services.", "supply chain's international services."

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 von international policies.") or ("supply change international services."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply von international policies.") OR ("supply change international services.")).
• Removing quotes may allow a broader search: (( supply von international policies. ) or ( supply change international services. )).
• Adding a wildcard symbol may retrieve word variants: (("supply von international policies.") or ("supply change international services."))*.