Perhaps you should try some spelling variations:
international aid » international airshow, international airport
international pdr » international port, international pour, international prtr
economic crises » economic crisis, economic costs
economies were » economies more, economies warren, economies learn
aid economies » main economies, oil economies, aa economies
pdr economic » poor economic, war economic, 2 economic

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: (( international aid economies were ) OR ( international pdr economic crises ))~.
• Adding a wildcard symbol may retrieve word variants: (( international aid economies were ) or ( international pdr economic crises ))*.