Perhaps you should try some spelling variations:
international efforts » international airports, international energy, international airport
integration theorems » integration theories, integration theory, integrationstheorie 2
trade international » care international, time international, private international
data integration » data integrity
supply trade » supply case

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