Perhaps you should try some spelling variations:
technology channel » technology change, technology changes, technology chapter
channel simulation » change simulation, change simulations, channel modulation
simulation state » simulation states, simulation stage, simulation system
19 communication » 1 communication, 10 communication, 9 communication
au developpement » du developpement, de developpement, le developpement
des afrique » en afrique, de l'afrique
state can » state case, state canada
costs au » costs a, costs amy, costs _
can 19 » can 11, can 1973

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

• Adding a wildcard symbol may retrieve word variants: technology channel simulation state can 19 communication costs au developpement des afrique.*.