Perhaps you should try some spelling variations:
technology social » technology series
social regulation » local regulation, social legislation, social relations
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
regulation class » regulation cases, regulation case, regulation across
developpement en » developpement et, developpement des, developpement de
class lives » class lines, class life, class line
lives 6.2 » live 6.2, lives 1.2, lives 6.1

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

• Adding a wildcard symbol may retrieve word variants: technology social regulation class lives 6.2 communication costs _ developpement en afrique.*.