Perhaps you should try some spelling variations:
communication costo » communication costs, communication costa, communications costs
1.1 communication » 4.1 communication, 1.3 communication, 1.4 communication
model development » local development, social development, global development
technology users » technology use, technology series, technology transfers
users inflation » users information, der inflation, does inflation
development l » development li, development 1, development law
costo model » cost model, cost models, costo del
rate space » state space, trace space, safe space
space 1.1 » spaces 1.1, space 2.1, space 4.1
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 users inflation rate space 1.1 communication costo model development l afrique.*.