Perhaps you should try some spelling variations:
communications modell » communications models, communication model, communicating model
china's integration » business integration
rica communications » africa communications, risk communications, rural communications
technology china's » technology changes, technology chinese, technology change
developpement en » developpement et, developpement des, developpement de
d developpement » de developpement, du developpement, le developpement
modell d » modell 1, modell 2, modell 4
2 rica » 2 rice

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

• Adding a wildcard symbol may retrieve word variants: technology china's integration 3 2 rica communications modell d developpement en afrique.*.