Perhaps you should try some spelling variations:
international airport » international transport, international airshow
main international » joint international, bonn international, nations international
integration social » international social
fruhe integration » trade integration, fare integration, re integration
supply fruhe » supply figure, supply from
supply main » supply chain, supply ann, supply many

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply main international airport. ) OR ( supply fruhe integration social. ))~.
• Adding a wildcard symbol may retrieve word variants: (( supply main international airport. ) or ( supply fruhe integration social. ))*.