Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
4 developpement » de developpement, le developpement, et developpement
vt information » ct information, get information, iot information
technology vt » technology vi, technology 1, technology 3
model rules » moral rules, model results, model rebels
des afrique » en afrique, de l'afrique
rules 6.2 » rules 3.2, rules 4.2, rules 2.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology vt information model rules 6.2 communication costs 4 developpement des afrique.*.