Perhaps you should try some spelling variations:
communications model » communications models, communication model, communicating model
4.2 communications » 4.2 communication, 3.2 communication, 6.2 communication
developpement en » developpement et, developpement des, developpement de
inflation gross » inflation across, inflation process, information gross
a developpement » au developpement, de developpement, le developpement
technology 2 » technology _, technology 1, technology 3
proceeds 4.2 » process 4.2, processes 4.2, proceeds 13.6
2 inflation » 12 inflation, _ inflation, 6 inflation
model a » model 1

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

• Adding a wildcard symbol may retrieve word variants: technology 2 inflation gross proceeds 4.2 communications model a developpement en afrique.*.