Perhaps you should try some spelling variations:
international war » international water, international air, international waters
international pdr » international port, international air, international ports
economies were » economies more, economies have, economies face
war economies » war economic, world economies, poor economies
economic case » economics case, economic cost, economic crises
pdr economic » poor economic, war economic, _ economic

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( international war economies were ) or ( international pdr economic case ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( international war economies were ) OR ( international pdr economic case ))*.