Perhaps you should try some spelling variations:
china developpement » china development, child development, china's development
14 communication » 1.4 communication, 14 communications, 4 communication
developpement en » developpement et, developpement des, developpement de
based service » basic service
technology d » technology 1, technology 3, technology 4
d simulation » 3d simulation, de simulation, md simulation
service 14 » service 1, service 4, service 10.4

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

• Adding a wildcard symbol may retrieve word variants: technology d simulation based service 14 communication costs china developpement en afrique.*.