Perhaps you should try some spelling variations:
communication model » communication media
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
technology usage » technology use, technology age, technology users
usage inflation » wage inflation, age inflation, usage information
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
inflation bias » inflation boys, inflation das, inflationary bias
bias prices » gas prices, biomass prices, bonds prices
prices 3.5 » prices 3.1, prices 3.2, prices 7.5
l afrique » en afrique
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 usage inflation bias prices 3.5 communication model a developpement l afrique.*.