Perhaps you should try some spelling variations:
introduction base » introduction case, introduction basic, introduction basin
des communication » les communications, nets communication, c's communication
technologies ict » technologies icts, technologies iot, technologies art
ict introduction » iot introduction, diet introduction, list introduction
20 development » 2 development, 2015 development, 2007 development
development en » developpement en, development menu, development eco
base case » use case, base wage
case des » cases des, case das, phase des
costs 20 » costs 60, costs 2.3, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technologies ict introduction base case des communication costs 20 development en afrique.*.