Perhaps you should try some spelling variations:
communication mode » communication model, communication modes, communication module
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
inflation goods » inflation good, inflation gross, information goods
technology age » technology usage, technology wages, technology a
age inflation » wage inflation, wages inflation, area inflation
goods prices » goods services, gas prices
prices 4.2 » prices 3.2, prices 4.6, prices 4.9
mode au » mode auf, mode a, mode ad

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

• Adding a wildcard symbol may retrieve word variants: technology age inflation goods prices 4.2 communication mode au developpement en afrique.*.