Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
communication 2.3 » communication 23.3, communication 3.3, communication 2.4
et developpement » de developpement, le developpement, test development
technology cost » technology case, technology can, technology choice
cost solution » best solution, iot solution, cost revolution
des afrique » en afrique, de l'afrique
space race » space place
race 4.1 » race 4.10, rice 4.1, race 4.2
2.3 et » 2.3 ett, 2.3 el, 2.3 es

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

• Adding a wildcard symbol may retrieve word variants: technology cost solution space race 4.1 communication 2.3 et developpement des afrique.*.