Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4 communications » 14 communications, 4 communication, 2 communications
technology wage » technology wages, technology age, technology usage
variation basic » valuation basic, variation bei, polarization basic
developpement l » developpement il, developpement la, developpement de
wage variation » care variation, rate variation, wise variation
services 4 » services 3.3
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology wage variation basic services 4 communications costs _ developpement l afrique.*.