Perhaps you should try some spelling variations:
military intervention » policy intervention
intervention debt » intervention der, intervention best, intervention de
3 communication » 4 communication, de communication, data communication
development lie » development life, development li, development lid
4 development » 2 development, 4 developing
lie afrique » l afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: techniques military intervention debt data 3 communication costs 4 development lie afrique.*.