Perhaps you should try some spelling variations:
c's communication » lea's communication, class communication, mass communication
interaction cost » interaction counts, interaction about, interaction how
3.1 development » 2 development
development lid » development led, development li, development lie
lid afrique » l afrique
cost data » test data
costs 3.1 » costs 3.5, costs 4.1, costs 2.1
data c's » data case, data can, data car

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

• Adding a wildcard symbol may retrieve word variants: technologies _ interaction cost data c's communication costs 3.1 development lid afrique.*.